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1 Managing the information that drives the enterprise STORAGE Vol. 10 No. 1 March 2011 MOBILE BACKUP QUALITY AWARDS: ENTERPRISE ARRAYS ALSO INSIDE Networks: What’s old is new again Storage virtualization doesn’t have to be so hard Time to take the cloud seriously Want more capacity … or performance? Striving for storage efficiency The best storage for virtual desktops There’s a lot more to know about storage for virtual desktop infrastructures than boot storms and linked clones. ALSO INSIDE Networks: What’s old is new again Storage virtualization doesn’t have to be so hard Time to take the cloud seriously Want more capacity … or performance? Striving for storage efficiency

Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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Page 1: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

1

Managing the information that drives the enterprise

STORAGEVol 10 No 1 March 2011

MOBILE BACKUP bull QUALITY AWARDS ENTERPRISE ARRAYS

ALSO INSIDENetworks Whatrsquos old is new again

Storage virtualization doesnrsquot have to be so hardTime to take the cloud seriously

Want more capacity hellip or performanceStriving for storage efficiency

The best storage for

virtual desktopsTherersquos a lot more to know about

storage for virtual desktop infrastructures than boot storms and linked clones

ALSO INSIDENetworks Whatrsquos old is new again

Storage virtualization doesnrsquot have to be so hardTime to take the cloud seriously

Want more capacity hellip or performanceStriving for storage efficiency

STORAGEinside |March 2011

STORAGEinside | March 2011

4 Storage March 2011 Illustration by Enrico Varrasso

STORAGEinside | march 2011

For networks whatrsquos old is whatrsquos new6 EDITORIAL As Ethernet continues to navigate its roadmap on the way

to 100 Gbps it looks like it might take over all networking chores in the data center by RICH CASTAGNA

Three vendors still stalking storage virtualization9 STORWARS Are you still confused about server virtualization There

are some good alternativesmdashwith solid benefitsmdashto virtualizing storage systems by TONY ASARO

Managing storage for virtual desktops13 Watch out for boot storms Configuring storage for virtual desktop

infrastructures can be tricky but there are creative ways to help ensure that your virtual desktops get the performance they require by ERIC SIEBERT

Backup for remote and mobile devices25 Backing up remote sites and mobile devices has always been a

challenge But with a workforce thatrsquos getting more mobile itrsquos time to get a handle on remote backups by W CURTIS PRESTON

Quality Awards VI NetApp tops enterprise arrays field again36 NetApp once again leads a very strong field of enterprise

array vendors that racked up some of the highest scores wersquove seen to date by RICH CASTAGNA

Cloud projects climbing IT priority lists45 HOT SPOTS A recent ESG survey indicates that investments in cloud

services and infrastructure will increase in 2011 meaning the much-hyped technology may start to hit its stride in the real world by TERRI MCCLURE

Letrsquos focus on storage performance in 201150 READWRITE For the last few years wersquove been preoccupied with

storage capacity and astronomical data growth rates In the process wersquove overlooked storage performance by JEFF BOLES

Still a struggle to achieve storage efficiency55 SNAPSHOT Our latest survey finds most respondents feel their companies

use storage pretty efficiently but disk capacity is still wasted because administrators donrsquot have the right tools by RICH CASTAGNA

From our sponsors57 Useful links from our advertisers

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Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storageefficiency

Sponsorresources

6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

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1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

to the scalable SmartStyle Cloud Servers It is expandable up to 100

reliable than RAID 6

Score a lsquotechnicalrsquo knock out with your customers today

Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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Storage virtualizationmade easy

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

Thank YouYour CEO CFO and CIO

Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

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bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 2: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGEinside |March 2011

STORAGEinside | March 2011

4 Storage March 2011 Illustration by Enrico Varrasso

STORAGEinside | march 2011

For networks whatrsquos old is whatrsquos new6 EDITORIAL As Ethernet continues to navigate its roadmap on the way

to 100 Gbps it looks like it might take over all networking chores in the data center by RICH CASTAGNA

Three vendors still stalking storage virtualization9 STORWARS Are you still confused about server virtualization There

are some good alternativesmdashwith solid benefitsmdashto virtualizing storage systems by TONY ASARO

Managing storage for virtual desktops13 Watch out for boot storms Configuring storage for virtual desktop

infrastructures can be tricky but there are creative ways to help ensure that your virtual desktops get the performance they require by ERIC SIEBERT

Backup for remote and mobile devices25 Backing up remote sites and mobile devices has always been a

challenge But with a workforce thatrsquos getting more mobile itrsquos time to get a handle on remote backups by W CURTIS PRESTON

Quality Awards VI NetApp tops enterprise arrays field again36 NetApp once again leads a very strong field of enterprise

array vendors that racked up some of the highest scores wersquove seen to date by RICH CASTAGNA

Cloud projects climbing IT priority lists45 HOT SPOTS A recent ESG survey indicates that investments in cloud

services and infrastructure will increase in 2011 meaning the much-hyped technology may start to hit its stride in the real world by TERRI MCCLURE

Letrsquos focus on storage performance in 201150 READWRITE For the last few years wersquove been preoccupied with

storage capacity and astronomical data growth rates In the process wersquove overlooked storage performance by JEFF BOLES

Still a struggle to achieve storage efficiency55 SNAPSHOT Our latest survey finds most respondents feel their companies

use storage pretty efficiently but disk capacity is still wasted because administrators donrsquot have the right tools by RICH CASTAGNA

From our sponsors57 Useful links from our advertisers

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Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storageefficiency

Sponsorresources

6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

HP Converged Infrastructure makesstorage agile and efficient so your data center is ready for whatrsquos next

Highly virtualized HP 3PAR Storage Systems are designed from the ground up to deliver transformative levels of agility and efficiency to virtualized data centers Exclusive thin technologies and autonomic management capabilities built into HP 3PAR Storage Systems deliver unique benefits

Reduce acquisition and operational costs by 50 bull Reduce storage management time by 90 bull Cut storage capacity requirements by 50bull 1

Are you ready for whatrsquos next

raquo Learn more about HP 3PAR Storage Systems

1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

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10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

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Storage virtualizationmade easy

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16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

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23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Mobile backup

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

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Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Storage efficiency

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33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

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Faster performance Easier deployment Lower cost

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Networking Old is new again

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Capacity or performance

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 3: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGEinside | March 2011

4 Storage March 2011 Illustration by Enrico Varrasso

STORAGEinside | march 2011

For networks whatrsquos old is whatrsquos new6 EDITORIAL As Ethernet continues to navigate its roadmap on the way

to 100 Gbps it looks like it might take over all networking chores in the data center by RICH CASTAGNA

Three vendors still stalking storage virtualization9 STORWARS Are you still confused about server virtualization There

are some good alternativesmdashwith solid benefitsmdashto virtualizing storage systems by TONY ASARO

Managing storage for virtual desktops13 Watch out for boot storms Configuring storage for virtual desktop

infrastructures can be tricky but there are creative ways to help ensure that your virtual desktops get the performance they require by ERIC SIEBERT

Backup for remote and mobile devices25 Backing up remote sites and mobile devices has always been a

challenge But with a workforce thatrsquos getting more mobile itrsquos time to get a handle on remote backups by W CURTIS PRESTON

Quality Awards VI NetApp tops enterprise arrays field again36 NetApp once again leads a very strong field of enterprise

array vendors that racked up some of the highest scores wersquove seen to date by RICH CASTAGNA

Cloud projects climbing IT priority lists45 HOT SPOTS A recent ESG survey indicates that investments in cloud

services and infrastructure will increase in 2011 meaning the much-hyped technology may start to hit its stride in the real world by TERRI MCCLURE

Letrsquos focus on storage performance in 201150 READWRITE For the last few years wersquove been preoccupied with

storage capacity and astronomical data growth rates In the process wersquove overlooked storage performance by JEFF BOLES

Still a struggle to achieve storage efficiency55 SNAPSHOT Our latest survey finds most respondents feel their companies

use storage pretty efficiently but disk capacity is still wasted because administrators donrsquot have the right tools by RICH CASTAGNA

From our sponsors57 Useful links from our advertisers

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Reduce man hours and save up to 76 in network management costsLearn how PACSUN reduced their storage administration time by 20 at dellenterprisecomequallogic

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Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storageefficiency

Sponsorresources

6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

HP Converged Infrastructure makesstorage agile and efficient so your data center is ready for whatrsquos next

Highly virtualized HP 3PAR Storage Systems are designed from the ground up to deliver transformative levels of agility and efficiency to virtualized data centers Exclusive thin technologies and autonomic management capabilities built into HP 3PAR Storage Systems deliver unique benefits

Reduce acquisition and operational costs by 50 bull Reduce storage management time by 90 bull Cut storage capacity requirements by 50bull 1

Are you ready for whatrsquos next

raquo Learn more about HP 3PAR Storage Systems

1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

Iron Mountain has a proven track record of intelligently managing enterprise information and pioneered cloud information management over 15 years ago Our underground data centers provide an unprecedented level of security reliability and protection Trusted by over 90 of the Fortune 1000 with 140000 clients in more than 40 countries we go to great lengths to protect our customersrsquo information their reputation and ours

Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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Storage virtualizationmade easy

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

Hitachi IT Operations Analyzer Proven to save you time and money

THERErsquoS A FASTER WAY TO IDENTIFY THE ISSUES IN YOUR IT ENVIRONMENT

copy Hitachi Data Systems Corporation 2011 All rights reserved

Hitachi IT Operations Analyzer will give you the insight to successfullymonitor your infrastructure Every component server or storage device can be displayed and monitored through a single dashboard so you can

bull Improve effi ciency of your network

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bull Identify critical issues

bull Make effective decisions based on real-time data

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Sponsorresources

23 Storage March 2011

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Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

to the scalable SmartStyle Cloud Servers It is expandable up to 100

reliable than RAID 6

Score a lsquotechnicalrsquo knock out with your customers today

Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

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bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 4: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

4 Storage March 2011 Illustration by Enrico Varrasso

STORAGEinside | march 2011

For networks whatrsquos old is whatrsquos new6 EDITORIAL As Ethernet continues to navigate its roadmap on the way

to 100 Gbps it looks like it might take over all networking chores in the data center by RICH CASTAGNA

Three vendors still stalking storage virtualization9 STORWARS Are you still confused about server virtualization There

are some good alternativesmdashwith solid benefitsmdashto virtualizing storage systems by TONY ASARO

Managing storage for virtual desktops13 Watch out for boot storms Configuring storage for virtual desktop

infrastructures can be tricky but there are creative ways to help ensure that your virtual desktops get the performance they require by ERIC SIEBERT

Backup for remote and mobile devices25 Backing up remote sites and mobile devices has always been a

challenge But with a workforce thatrsquos getting more mobile itrsquos time to get a handle on remote backups by W CURTIS PRESTON

Quality Awards VI NetApp tops enterprise arrays field again36 NetApp once again leads a very strong field of enterprise

array vendors that racked up some of the highest scores wersquove seen to date by RICH CASTAGNA

Cloud projects climbing IT priority lists45 HOT SPOTS A recent ESG survey indicates that investments in cloud

services and infrastructure will increase in 2011 meaning the much-hyped technology may start to hit its stride in the real world by TERRI MCCLURE

Letrsquos focus on storage performance in 201150 READWRITE For the last few years wersquove been preoccupied with

storage capacity and astronomical data growth rates In the process wersquove overlooked storage performance by JEFF BOLES

Still a struggle to achieve storage efficiency55 SNAPSHOT Our latest survey finds most respondents feel their companies

use storage pretty efficiently but disk capacity is still wasted because administrators donrsquot have the right tools by RICH CASTAGNA

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Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

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6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

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7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

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1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

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9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

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10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

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16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

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Storage for VDI

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23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Mobile backup

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

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leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

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BrianMaddencom Your independent source for application and desktop virtualization

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bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

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STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 5: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

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Storage virtualizationmade easy

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6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

HP Converged Infrastructure makesstorage agile and efficient so your data center is ready for whatrsquos next

Highly virtualized HP 3PAR Storage Systems are designed from the ground up to deliver transformative levels of agility and efficiency to virtualized data centers Exclusive thin technologies and autonomic management capabilities built into HP 3PAR Storage Systems deliver unique benefits

Reduce acquisition and operational costs by 50 bull Reduce storage management time by 90 bull Cut storage capacity requirements by 50bull 1

Are you ready for whatrsquos next

raquo Learn more about HP 3PAR Storage Systems

1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

Networking Old is new again

Storage virtualizationmade easy

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Capacity or performance

Storage efficiency

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9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 6: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Storage May 2010Copyright 2011 TechTarget No part of this publication may be transmitted or reproduced in any form or by any means without permission in writingfrom the publisher For permissions or reprint information please contact Mike Kelly VP and Group Publisher (mkellytechtargetcom)

Networking Old is new again

Storage virtualizationmade easy

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6

tHE NETWORK IS still the Rodney Dangerfield of enterprise storage infrastructuremdashit just canrsquot seem to get the respect it needs and sometimes doesnrsquot even getthe attention it deserves Sure you care about the network when it gets toocongested to carry data around efficiently or when you run out of places toplug things in but for the most part itrsquos just there

But a couple of developments in the last few years have generated moreinterest in the neglected network Fibre Channel over Ethernet (FCoE) toutedas the great storage uniter offers a way to knit together otherwise disparatenetworks making Fibre Channel and Ethernet networks function as one (atleast in theory)

FC has been the de facto stan-dard connective tissue for enter-prise-class storage environmentsand with its storage-centric proto-col design itrsquos generally acceptedas the performance leader But Ethernetrsquos stake in the storage shop has grown significantly overthe last five or so years as NAS systems have proliferated in re-sponse to the ever-rising tide of filestorage Ethernetrsquos reach has also been extended as iSCSI continues to gain ashare of the block storage market iSCSI didnrsquot exactly take the data center bystorm but based on our research its incremental growth puts it in more than40 of the countryrsquos data storage shops

That makes Ethernet-based storage a player for both file and block And italmost makes it the default candidate for multiprotocol storage where blockand file share the same system which is quite possibly the fastest growingsegment of the storage system market

Every IT shop has years of Ethernet experience and the hardware it hangson is tried true and pretty cheap Fibre Channel aficionados will say thatrsquos alltrue but you donrsquot get the performance of a network specifically designed for

editorial | rich castagna

For networks whatrsquosold is whatrsquos new

As Ethernet continues to navigate its roadmap on the way to 100 Gbps it looks like it might take over

all networking chores in the data center

Every IT shop hasyears of Ethernetexperience and thehardware it hangs on is tried true andpretty cheap

STORAGE

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7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

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1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

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9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

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Storage for VDI

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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Quality AwardsEnterprise

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

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Storage virtualizationmade easy

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Storage efficiency

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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Storage virtualizationmade easy

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

to the scalable SmartStyle Cloud Servers It is expandable up to 100

reliable than RAID 6

Score a lsquotechnicalrsquo knock out with your customers today

Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

Thank YouYour CEO CFO and CIO

Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

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NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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Storage virtualizationmade easy

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

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bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 7: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

7 Storage March 2011

storage Well now you do get that performance (or nearly so) as 10 GigabitEthernet (10 GbE) gear begins to replace the old 1 GbE stuff in most shopsEven at a slightly slower 8 Gbps Fibre Channel might still have the perform-ance edge because of its storage pedigree But itrsquos not that much of an edgeand the Ethernet roadmap bolstered by the ratification of the IEEE 8023bastandard last year has 40 GbE on the near horizon with products already being demonstrated and 100 GbE to follow hard on its heels

Add the emergence of SAS disks as a replacement for FC disks on theback end and how SAS can easilycombine with SATA drives for tieredmultiprotocol storage and it lookslike the NASiSCSIEthernet combowill be pretty tough to top

Where does that leave Fibre Chan-nel over Ethernet If Fibre Channel isgetting squeezed out of the storagepicture and Ethernet is destined to be the data center-wide network ofchoice why should we even bother with FCoE FCoE appears to be a bridgetechnology (pardon the pun) that does a good job of linking FC and EthernetThe question is how long will we need that bridge and how many companiesneed to connect those two environments Is it worth investing in CNAs andspecial switches and new interfaces Wersquore not seeing a ton of FCoE storagesystems so maybe storage vendors donrsquot see a lot of potential for a big pay-back on that investment

Of course there are some shops that can use FCoE now use it effectivelyand save money in doing so But I donrsquot expect theyrsquore in the majority

Ultimately it looks like itrsquoll be an Ethernet world which will certainlymake things simpler And as IO virtualization catches up with server andstorage virtualization working with a single network architecture will makeit even easier to virtualize and share network resources and to use themmore efficiently 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

Click here for a sneak peek at whatrsquos coming up in the April 2011 issue

Even at a slightlyslower 8 Gbps FibreChannel might stillhave the performanceedge because of itsstorage pedigree

HP Converged Infrastructure makesstorage agile and efficient so your data center is ready for whatrsquos next

Highly virtualized HP 3PAR Storage Systems are designed from the ground up to deliver transformative levels of agility and efficiency to virtualized data centers Exclusive thin technologies and autonomic management capabilities built into HP 3PAR Storage Systems deliver unique benefits

Reduce acquisition and operational costs by 50 bull Reduce storage management time by 90 bull Cut storage capacity requirements by 50bull 1

Are you ready for whatrsquos next

raquo Learn more about HP 3PAR Storage Systems

1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

copy Copyright 2011 Hewlett-Packard Development Company LP The information contained herein is subject to change without notice Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein

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Storage virtualizationmade easy

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Taking the cloudmore seriously

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Storage efficiency

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9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Storage efficiency

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16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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Storage virtualizationmade easy

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

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Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Reliablebull 5 year warranty

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

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Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 8: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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1 Based on documented client results that are subject to unique business conditions client IT environment HP products deployed and other factors These results may not be typical your results may vary

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9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

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Storage virtualizationmade easy

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10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

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leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

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NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 9: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

9 Storage March 2011

eXTERNAL STORAGE VIRTUALIZATION (ESV) is the use of intelligent storage controllersthat provide volume management data management and protection featuresby creating a virtual storage system using external hardware and capacity Thegoal of ESV is to consolidate management and intelligent features and to enabletiering and heterogeneous replication If you implement a high-end intelligentESV system you can scale with lots of dumber and less-expensive systemsbehind it creating a great balance of high-end capabilities with lower costhardware This all looks good on paper but if the value proposition is so apparentwhy hasnrsquot ESV become the dominate storage infrastructure in our data centers

There are several reasons why ESV isnrsquot pervasive The first is that there areonly a handful of leading vendors pro-viding ESV solutions including HitachiData Systems IBM and NetApp Onecould argue that if EMC Corp decidedfive years ago that ESV was the new vision for storage it would probably bethe dominant architecture embraced by IT professionals today

Hitachi was the first to combine itsleading enterprise-class storage systemwith support for ESV technology back in2003 The company has done a great job of implementing ESV technology and in many cases has taken business away from the likes of EMC because of this unique capability The Hitachi ESV story has been getting better over timebecause of new technology that clearly quantifies its value Itrsquos able to providethin provisioning reclaim unused storage capacity and provide sub-LUN tieringto external storage systems

Sub-LUN tiering could be a ldquokiller apprdquo for external storage virtualization butusers are cautious of an idea that scatters their data across virtual volumesspanning multiple storage systems If Hitachi can validate that sub-LUN tieringis highly reliable when combined with ESV it could save customers millionsand enable them to further leverage their unique architecture

StorWars | tony asaro

Three vendors still stalking storage virtualization

Overwhelmed by all the buzz around server virtualizationThere are still solid alternativesmdashwith real benefitsmdash

to virtualizing storage systems

Hitachi was the firstto combine its lead-ing enterprise-classstorage system withsupport for ESVtechnology back in 2003

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

INTRODUCING FLUID DATAEXPERIENCE ENTERPRISE

STORAGE WITH

THE FUTURE BUILT IN

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FIND OUT WHAT FLUID DATA HAS DONE FOR OUR CUSTOMERS

Scan the QR code with your smartphone for a preview

For scan app visit getbeetagcom

Storage_Mag_Ad_1_111910_v3ai 1 111910 337 PM

The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

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23 Storage March 2011

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Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

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MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

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33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

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Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Storage efficiency

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37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 10: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

However while ESV technology has helped to keep Hitachi in the enterprise-class storage game it hasnrsquot been enough to make them dominant The enter-prise-class storage system market is still a toe-to-toe battle with gains andlosses measured in inches not miles

IBM has offered its external SAN Volume Controller (SVC) appliance for anumber of years and itrsquos been adopted by a sizable number of IBM users Themost frequent complaints I hear from IBM SVC users center around its costto the point where price has been the key deterrent to taking advantage ofsome of SVCrsquos coolest features like heterogeneous replication One IT profes-sional asked me for advice about performing data replication between an IBMDS8000 and a DS4000 even though his company has an SVC deployed The ITpro said it was too expensive to use theSVC so they were seeking alternatives

I rarely run into non-IBM storageusers who have implemented SVC so itdoesnrsquot look like IBM has done a partic-ularly good job increasing its footprintbeyond its existing customer base

NetApprsquos V-Series has been a popularproduct enabling companies to leveragethe intelligence of NetApp FAS usingSAN-attached storage on the back endItrsquos actually a more popular approachthan you might think Again itrsquos not NetApprsquos primary strategy but it pro-vides a smart alternative for users whohave already invested a ton of money in their current SAN infrastructure

Those three products from major vendors arenrsquot all that competitive witheach other The Hitachi USP V and VSP are high-end enterprise-class systemsfocused on SAN storage providing a storage system that also enables externalstorage virtualization IBMrsquos SVC seems to have been designed as a complementto IBMrsquos DS8000 and DS4000 storage systems And NetApprsquos V-Series is more ofa midrange appliance that provides both NAS and SAN external storage virtual-ization I doubt these three vendors ever run into each other in competitivesituations

External storage virtualization has made an impact and will continue to doso but it has failed to establish any sort of dominance in the data center Costcomplexity and the risk of the unknown are still major impediments to itsadoption

Another reason ESV isnrsquot more pervasive is that only Hitachi has made thistechnology a core part of its strategy IBM and NetApp have it in their portfoliosbut itrsquos not a top priority in terms of growth or vision The other major storagevendors including Dell Inc EMC Hewlett-Packard (HP) Co and Oracle Corp

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10 Storage March 2011

External storage virtualization is realand widely adoptedwith thousands of companies andorganizations usingit courtesy of thesethree vendors

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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Storage virtualizationmade easy

Storage for VDI

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

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Storage virtualizationmade easy

Storage for VDI

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Storage efficiency

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23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Storage efficiency

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33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

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Faster performance Easier deployment Lower cost

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Networking Old is new again

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Storage efficiency

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53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

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Capacity or performance

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

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Storage virtualizationmade easy

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 11: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

donrsquot offer ESV solutions in any real way HP does OEM Hitachirsquos USP V but hasnever truly focused on its virtualization capabilities

External storage virtualization is real and widely adopted with thousandsof companies and organizations using it courtesy of these three vendorsThese solutions have been on the market for years and have developed agreat deal of field traction so the risk factor seems to be much less of aconcern ESV offers a great deal of benefit and should be considered whenanalyzing your storage strategies and roadmaps 2

Tony Asaro is senior analyst and founder of Voices of IT (wwwVoicesofITcom)

STORAGE

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11 Storage March 2011

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

Networking Old is new again

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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Quality AwardsEnterprise

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

Hitachi IT Operations Analyzer Proven to save you time and money

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Hitachi IT Operations Analyzer will give you the insight to successfullymonitor your infrastructure Every component server or storage device can be displayed and monitored through a single dashboard so you can

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

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bull Colo-Level Virtualization

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

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leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

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bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

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Storage virtualizationmade easy

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Taking the cloudmore seriously

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 12: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

server rooms that require GPs NaviGatioN

We get that virtualization can drive a better ROI Highly certified by Microsoft VMware HP and others we can evaluate design and implement the right solution for youWersquoll get you out of this mess at CDWcomvirtualization

soLveD

copy2011 CDW LLC CDWreg CDWbullGreg and PeOPLe WHO Get Ittrade are trademarks of CDW LLC

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13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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Take a free trial today at

itoperationshdscom

With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

to the scalable SmartStyle Cloud Servers It is expandable up to 100

reliable than RAID 6

Score a lsquotechnicalrsquo knock out with your customers today

Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 13: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

13 Storage March 2011

Managing storage for virtual desktops

Virtual desktops promise savings andconsolidation similar to whatserver virtualization

delivers but once again storage is a big issueBY ERIC SIEBERT

implementing a virtual desktop infrastructure (VDI) involvesmany critical considerations but storage may be the most vitalUser experience can often determine the success of a VDI implementation and storage is perhaps the one area that has the most impact on the user experience If you donrsquot design implement and manage your VDI storage properly yoursquore askingfor trouble

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

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Storage virtualizationmade easy

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

INTRODUCING FLUID DATAEXPERIENCE ENTERPRISE

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

Iron Mountain has a proven track record of intelligently managing enterprise information and pioneered cloud information management over 15 years ago Our underground data centers provide an unprecedented level of security reliability and protection Trusted by over 90 of the Fortune 1000 with 140000 clients in more than 40 countries we go to great lengths to protect our customersrsquo information their reputation and ours

Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

Hitachi IT Operations Analyzer Proven to save you time and money

THERErsquoS A FASTER WAY TO IDENTIFY THE ISSUES IN YOUR IT ENVIRONMENT

copy Hitachi Data Systems Corporation 2011 All rights reserved

Hitachi IT Operations Analyzer will give you the insight to successfullymonitor your infrastructure Every component server or storage device can be displayed and monitored through a single dashboard so you can

bull Improve effi ciency of your network

bull Minimize downtime of IT and applications

bull Identify critical issues

bull Make effective decisions based on real-time data

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itoperationshdscom

With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

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Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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23 Storage March 2011

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Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

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MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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reliable than RAID 6

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

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Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

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bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull The SystemsManagement Buyers Guide

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

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SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 14: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

VDIrsquoS IMPACT ON STORAGEThe biggest challenge for storage in VDI environments is accommodating theperiods of peak usage when storage IO is at its highest The most commonevent that can cause an IO spike is the ldquoboot stormrdquo that occurs when alarge group of users boots up and loads applications simultaneously Initialstartup of a desktop is a very resource-intensive activity with the operatingsystem and applications doing a lot of reading from disk Multiplied by hundredsof desktops the amount of storage IO generated can easily bring a storagearray to its knees Boot storms arenrsquotjust momentary occurrencesmdashthey canlast from 30 minutes to two hours andcan have significant impact

After users boot up log in and loadapplications storage IO typically set-tles down however events like patch-ing desktops antivirus updatesscansand the end-of-day user log off canalso cause high IO Having a datastorage infrastructure that can handlethese peak periods is therefore critical

Cost is another concern The ROIwith VDI isnrsquot the same as server virtu-alization so getting adequate fundingcan be a challenge A proper storage infrastructure for VDI can be very costlyand to get the required IO operationsper second (IOPS) you may have to pur-chase more data storage capacity than yoursquoll need

Expect to spend more time on administration too Hundreds or thousandsof virtual disks for the virtual desktops will have to be created and maintainedwhich can be a difficult and time-consuming task

DETERMINING STORAGE REQUIREMENTSTo properly design a VDI infrastructure you need to understand the resource requirements needed by virtual desktop users Donrsquot make assumptions toproperly calculate resource requirements you need actual statistics from theusers whose desktops will be virtualized Profiling the users and measuringtheir resource usage is the key to determining storage requirements Productsfrom vendors like Lakeside Software Inc and Liquidware Labs Inc can collectdata from usersrsquo desktops so you can perform an assessment of your environ-ment and determine your needs The longer you collect data the less likely itwill be affected by unusual or periodic activities

STORAGE

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Storage virtualizationmade easy

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14 Storage March 2011

A proper storageinfrastructure forVDI can be verycostly and to getthe required IOoperations per second (IOPS) you may have topurchase more storage capacitythan yoursquoll need

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

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Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

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28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

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Storage virtualizationmade easy

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Quality AwardsEnterprise

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Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

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Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

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Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
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Page 15: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

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16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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Storage virtualizationmade easy

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

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Taking the cloudmore seriously

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Storage efficiency

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Storage efficiency

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33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

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copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

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Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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STORAGE

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Storage virtualizationmade easy

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Quality AwardsEnterprise

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Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

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Capacity or performance

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 16: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

The key measurement for storage is IOPS A number of factors can affectIOPS (caching block size) but the base calculation is derived from hard drivemechanics rotational speed (rpm) latency and seek time A typical 7200 rpmdrive might be capable of 75 IOPS a 10K drive 125 IOPS a 15K drive 175 IOPSand a solid-state drive 5000 IOPS Spread across a RAID group you can multi-ply the number of drives in the RAID group times the IOPS of the drive to getthe total IOPS the RAID group is capable of (eg six 15K drives x 175 IOPS =1050 IOPS) There are other factors such as caching that can increase IOPSwhile RAID overhead and latency in network storage protocols can decrease it

You should always measure actual user resource usage but there are accepted averages you can use as a starting point The averages are based on the characteristics for certain types of users

Donrsquot design your VDI storage to handle just average IO loads it has to accommodate peak IO loads to provide a good user experience Having enoughstorage capacity is obviously important but how it performs is more importantBecause the number of spindles plays a big part in a storage arrayrsquos performanceyou may end up with more capacity than you need just to get the required IOPS

FIBRE CHANNEL vs iSCSI vs NASThe type of storage is often dictated by budgets and available existing storageinfrastructure A Fibre Channel (FC) SAN would provide ample performance butacquiring it may make VDI too expensive to implement iSCSI and NAS (NFS)are attractive alternatives but you need to ensure they can meet IO require-ments Using 10 Gb Ethernet (10 GbE) can dramatically increase the throughputto iSCSI and NAS devices but if you havenrsquot implemented 10 GbE yet it couldbe just as expensive as implementing FC

Peak IOPS loads may exceed the number of IOPS an iSCSI or NAS (NFS) device can handle But adding cache or an accelerator in front of the storagedevice may improve performance sufficiently Both iSCSI and NFS add CPUoverhead to the host server for iSCSI this can be offset with hardware initiatorsAccelerator solutions typically wonrsquot work with NAS but there are other cachingsolutions available for NAS (NFS)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

16 Storage March 2011

Task workers

6040

2 to 13

6

Productivityworkers

8020

2 to 21

9

Knowledge workers

4060

7 to 59

22

IO patterning (readswrites)

IOPS range

Avg IOPS

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

Iron Mountain has a proven track record of intelligently managing enterprise information and pioneered cloud information management over 15 years ago Our underground data centers provide an unprecedented level of security reliability and protection Trusted by over 90 of the Fortune 1000 with 140000 clients in more than 40 countries we go to great lengths to protect our customersrsquo information their reputation and ours

Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

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Storage virtualizationmade easy

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19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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Taking the cloudmore seriously

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Storage efficiency

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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Taking the cloudmore seriously

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Storage efficiency

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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Capacity or performance

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

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Storage virtualizationmade easy

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 17: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

LUN SIZES AND RAIDWhen sizing LUNsvolumes for VDI donrsquot focus on performance rather thancapacity to ensure that your LUNS can provide the required IOPS There trulyis no magic number for LUN sizes as many factors come into play Generallythe more spindles you have in the RAIDgroup that makes up your LUN the better You also shouldnrsquot size your LUNstoo small for the number of virtual desk-tops yoursquoll have on them Whether or notyoursquore using full virtual disks or linkedclones will also influence sizing as thelatter requires much less disk space

You have a range of RAID options toachieve either better protection or betterperformance A key factor that will in-fluence your RAID choice is the readwrite ratio of your virtual desktopsWhen reading data from a RAID group therersquos no IO penalty associated withthe RAID overhead but therersquos an IO penalty when writing The more protectionyou want the more it will cost you in IO penalties For example RAID 1 hasan IO penalty of two as writes have to be written to both drives with RAID 5it increases to four and for RAID 6 itrsquos six If your IO workloads will involvemore writing than reading you want to use a RAID level that has less of apenalty when writing Having a larger write cache in your array controller or using a custom RAID level like NetApprsquos RAID-DP can also help

STORAGE

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17 Storage March 2011

USE LINKED CLONES TO SAVE STORAGE

LINKED CLONES can be an invaluable feature to use in a virtual desk-top infrastructure (VDI) environment Linked clones work by havinga single master virtual machine (VM) that holds an image of thebase operating system the desktops will use All virtual desktopsread from this image with any writes captured in a separate deltafile created for each VM Delta files are typically small althoughthey can grow if every disk block was written tomdashbut thatrsquos unlikelyto happen Linked clones can be periodically refreshed to includepatches and operating system and application updates Linkedclones offer clear advantages but they can be more complicated to maintain than full disk images

A key factor that willinfluence your RAIDchoice is the readwrite ratio of yourvirtual desktops

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

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Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

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DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

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The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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Storage efficiency

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 18: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

copy 2010 Iron Mountain Incorporated All rights reserved Iron Mountain the design of the mountain and the Iron Mountain logo are registered trademarks of Iron Mountain Incorporated in the US and other countries

Iron Mountain can help We offer a rich set of on-premises hybrid and cloud information management solutions for archiving eDiscovery data protection and compliance We can help you select the right solutions to meet your specific needs so you can migrate to the cloud when and if youre ready

Iron Mountain has a proven track record of intelligently managing enterprise information and pioneered cloud information management over 15 years ago Our underground data centers provide an unprecedented level of security reliability and protection Trusted by over 90 of the Fortune 1000 with 140000 clients in more than 40 countries we go to great lengths to protect our customersrsquo information their reputation and ours

Email digital-infoironmountaincom or visit wwwironmountaincomcloudhelp to schedule an assessment of your information management needs

Having trouble deciding whether to migrate to the cloud

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

Hitachi IT Operations Analyzer Proven to save you time and money

THERErsquoS A FASTER WAY TO IDENTIFY THE ISSUES IN YOUR IT ENVIRONMENT

copy Hitachi Data Systems Corporation 2011 All rights reserved

Hitachi IT Operations Analyzer will give you the insight to successfullymonitor your infrastructure Every component server or storage device can be displayed and monitored through a single dashboard so you can

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

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The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

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MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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Taking the cloudmore seriously

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Storage efficiency

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

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Storage virtualizationmade easy

Storage for VDI

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 19: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

DRIVE TYPESSAS drives offer better performance but SATA drives can lower storage costsFast 15K drives can speed things up but at an increased cost compared to 10Kdrives Solid-state drives (SSDs) offer blazing performance but have a heftyprice tag Choosing drives to handle virtual desktop infrastructure workloadsusually comes down to buying the best drives you can afford Slower performingSATA drives typically arenrsquot desirable for most VDI workloads so SAS drives are abetter choice

The platters of a 15K drive read and write data faster and overall latency is reduced but the head actuator that moves across the drive to access datadoesnrsquot So even if the drive is spinning 50 faster overall performance increasesby approximately 30 which results in higher IOPS

You can mix and match drive types to provide faster storage where neededand use cheaper slower storage for less demanding workloads You mightstore the master disks for linked clones on fast SSD storage and the deltadisks on SAS storage You could take this a step further and use an automatedtiering application to automatically balance workloads based on demand

CACHING AND SAN ACCELERATORSUsing a caching device or a SAN accelerator can make up for slower perform-ing storage devices and provide more IOPS to deal with boot storms and otherperiodic IO peaks It can also save money because you may be able to useless-expensive storage devices but still be able to handle your VDI IO work-loads Caching device like NetApprsquos Flash Cache can make a huge differenceand can greatly increase the number of IOPS your storage is capable of Con-

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Storage virtualizationmade easy

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Quality AwardsEnterprise

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Sponsorresources

19 Storage March 2011

VIRTUAL MACHINE RAM AND PAGING

THE AMOUNT OF RAM assigned to a virtual machine can have a bigimpact on its performance If you donrsquot assign enough RAM theoperating system will start paging to disk which can greatlyincrease the amount of disk IOmdasha situation you want to avoid asthe needless storage IO can degrade performance Assigning toomuch RAM can cause swapping at the virtualization layer if a hosthas overcommitted memory which can also degrade storage per-formance Itrsquos OK to overcommit host memory and itrsquos commonlydone with virtual desktop infrastructure (VDI) just make sure youdonrsquot completely exhaust your host memory

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

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signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

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and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 20: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

figure your caching for the appropriate areas events like boot storms gener-ally are very read intensive so a larger read cache will make a big difference

SAN accelerators are a great way to add a high-performance caching layerin front of your existing storage device FalconStorrsquos Network Storage Server(NSS) SAN Accelerator for VMware View is an easy-to-deploy appliance thatcan improve a storage systemrsquos performance It may even let you use low-cost SATA drives for your VDI storage and still get adequate performance

OTHER HELPFUL STORAGE FEATURESStorage arrays come bundled with manyfeatures that can help offload methodsand processes that might normally bedone elsewhere Allowing the storage array to handle the things it does bestcan increase efficiency and perform-ance Here are some storage array fea-tures that can be beneficial in a VDI environment

Data protection Features like Microsoft Volume Shadow Copy Service(VSS) that save previous versions of changed files can make it easier forusers to restore their own files But implementing this feature on all userdesktops can cause undesirable overhead and increase storage array IO

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Taking the cloudmore seriously

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20 Storage March 2011

Allowing the storagearray to handle the things it doesbest can increaseefficiency and performance

AVOIDING IO SPIKES

EVENTS THAT CAUSE IO spikes like boot storms canrsquot be avoided but other operations that cause IO spikes can be Use staggeredschedules when performing antivirus scansupdates as well aspatching and updating operating systems and applications Byspreading the load across a longer period of time you can avoidconcentrated IO on your storage system And you can offloadantivirus processing from the guest OS layer and move it to the virtualization layer where it can run more efficien tly VMware IncrsquosvShield Endpoint can offload antivirus scanning to a dedicated virtualappliance eliminating the need to run AV software inside the guestOS This greatly reduces the number of instances of antivirus youhave to run on your hosts and because itrsquos centralized itrsquos easierto manage and the resource usage is greatly reduced

Hitachi IT Operations Analyzer Proven to save you time and money

THERErsquoS A FASTER WAY TO IDENTIFY THE ISSUES IN YOUR IT ENVIRONMENT

copy Hitachi Data Systems Corporation 2011 All rights reserved

Hitachi IT Operations Analyzer will give you the insight to successfullymonitor your infrastructure Every component server or storage device can be displayed and monitored through a single dashboard so you can

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

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Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Reliablebull 5 year warranty

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

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Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

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STORAGE

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bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

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bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

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bull Corporate Laptop Backup - Best Practices

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bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

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bull Exagrids Eye on Deduplication

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bull The SystemsManagement Buyers Guide

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

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bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

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SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 21: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

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MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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Storage efficiency

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Virtualizationbull Build affordable virtualization solutions in small or

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Cloud Computingbull Hybrid cloud solutions for combination local and

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NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

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bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

bull Preventing Data Overload

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bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

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bull Exagrids Eye on Deduplication

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bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 22: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

With FalconStorrsquos NSS SAN Accelerator you can load an agent into the VDIgold master desktop template that allows the virtual desktop to communicatewith the NSS SAN Accelerator appliance so any file changes that occur insidethe guest OS are backed up by the appliance Files can be recovered by userswho can browse through previous versions and restore files to their desktopwithout involving the back-end storage device

Data deduplication Data deduplication can greatly reduce the amount of storage yoursquoll need for your virtual desktops especially if yoursquore using full image virtual machines (VMs) instead of linked clones If you have 100 desk-tops each with a 20 GB disk yoursquod needapproximately 2 TB of desktop spaceBut VDI users typically run the same OS and use many of the same applica-tions so therersquos lots of duplicate dataData deduplication can reduce theamount of disk space needed when using full image virtual desktops by as much as 90 and reduce the 2 TB to 200 GB With linked clones a singlemaster disk is shared with all writessaved to a delta file which may be only2 GB to 5 GB But if you plan to use full images data deduplication is a must

Thin provisioning Linked clones are already space efficient so thin provi-sioning wonrsquot provide much of a benefit But when using full image virtualdesktops thin provisioning can be a huge space saver allowing you to over-allocate storage Thin provisioning coupled with data dedupe can providetremendous space savings when using full images Thin provisioning can bedone at the storage array layer or virtualization layer While you can imple-ment it at both layers in a dense VDI environment it might make more senseto offload it to the storage array so therersquos less overhead on the virtualiza-tion layer It also simplifies management by only having to monitor and manage thin disks in just one area

VMware vStorage APIs for Array Integration VMware Incrsquos vStorageAPIs for Array Integration (VAAI) allow storage-related tasks normally performedby the virtualization layer to be offloaded to the storage system includingdata copy operations (cloning Storage vMotion) disk block zeroing and vmdkfile locking Leveraging VAAI in a VDI environment can provide benefits as diskoperations can be completed quicker and more efficiently than can normallybe done by the hypervisor VAAI is still rather new and adoption and integra-tion by storage vendors is still a work in progress but storage arrays thatsupport VAAI can provide some good benefits today and probably even moreas the technology matures

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

22 Storage March 2011

Dedupe can reducethe amount of diskspace needed whenusing full image virtual desktops byas much as 90

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

23 Storage March 2011

wwwzenithinfotechcom

Get the free mobile app at httpgettagmobi

Learn More

The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

to the scalable SmartStyle Cloud Servers It is expandable up to 100

reliable than RAID 6

Score a lsquotechnicalrsquo knock out with your customers today

Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

Thank YouYour CEO CFO and CIO

Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

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48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

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NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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bull Special Report Top Midrange Array Storage Controllers

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bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 23: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

KNOW YOUR NEEDSThere are many things to consider when designing storage to support a virtualdesktop infrastructure environment While budgets may limit some of youroptions there are a number of creative solutions available that can help youget the performance your virtual desktops will require But the first step is to know your requirements a proper assessment will help you define storagerequirements that will in turn help you implement a properly sized storagesolution With a right-sized storage system in place you can enjoy the benefitsof VDI without worrying that your storage system will become a bottleneckfor your users 2

Eric Siebert is an IT industry veteran with more than 25 years of experience whonow focuses on server administration and virtualization Hersquos the author ofVMware VI3 Implementation and Administration (Prentice Hall 2009) and Maximum vSphere (Prentice Hall 2010)

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

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Sponsorresources

23 Storage March 2011

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The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

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MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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Storage efficiency

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

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Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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Storage virtualizationmade easy

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Storage efficiency

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

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bull Exagrids Eye on Deduplication

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bull The SystemsManagement Buyers Guide

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bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull Checklist Key factors in planning a virtual desktop infrastructure

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 24: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

wwwzenithinfotechcom

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The Next-Generation in Business Continuity bull Continuous Data Mirroring bull Virtual Failover bull Live Bare-Metal Restore bull Granular Exchange Recovery

bull Colo-Level Virtualization

Introducing MirrorCloud the next-generation business continuity solution from Zenith Infotech While the competition was playing

catch-up we were creating the next breakthrough in business continuity

MirrorCloud is a feature-rich add-on to the robust SmartStyle Computing platform which continuously mirrors data from Windows-based servers and desktops

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Announcing a Business Continuity Solution in a Weight Class By Itself

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Storage efficiency

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26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

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The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Virtualizationbull Build affordable virtualization solutions in small or

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Cloud Computingbull Hybrid cloud solutions for combination local and

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

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bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull Corporate Laptop Backup - Best Practices

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SPONSOR RESOURCES

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See ad page 30

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SPONSOR RESOURCES

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See ad page 24

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 25: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

rEMOTE DATA CENTERS and mobile users represent the last frontierof backup and recovery And that frontier spirit is often reflectedin the way many companies rein in backup and recovery of remote and mobile data Remote data centers as well as usersof laptops or other mobile devices are often left on their own to make do with inferior methods (or none at all) while the ldquobigrdquodata center enjoys a modern day backup and recovery environ-ment But with so much data being created and carried aroundoutside the main data center itrsquos time for a change

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

25 Storage March 2011

Backupfor remote andmobile devicesThe problem of properly backingup remote site servers and mobilecomputing devices has been withus a long time But with a workforcethatrsquos getting more mobile itrsquos time to get a handle on remote backups

BY W CURTIS PRESTON

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

Thank YouYour CEO CFO and CIO

Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

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48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

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NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 26: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

THE ROOT OF THE PROBLEMRemote data centers often use standalone backup systems with limited connections to the corporate backup system And because they typicallydeal with smaller data sets remote centers often use less-expensive soft-ware and hardware So while the central data center may be running an enterprise-class backup product backing up to a large target data deduplica-tion system or tape library remote data centers often have workgroup-classbackup products feeding backups to small autoloaders or even individualtape drives

Likewise the corporate data center is likely to have a contract with a media vaulting company to ensure that backups are taken off-site every dayEven better the data center may be using a deduplication system that repli-cates backups off-site immediately Remote data centers on the other handoften have backup systems that may go unmonitored with backups that mayend up in the backseat of someonersquos car if they leave the premises at all

Mobile data backup is in even worse shape Many companies donrsquot have apolicy for backing up mobile data at all other than instructing mobile users tocopy important data to a file server Thatrsquos more about ignoring the problemthan having a viable backup policy in place

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

26 Storage March 2011

PLANTING THE BACKUP SEED

THE FIRST BACKUP from a remote computerreferred to as the ldquoseedrdquo must be takeninto consideration when designing yourbackup plan for remote data Unless yoursquorebacking up extremely small amounts ofdata (a few gigabytes) you need to figureout a way to transfer the seed to your central site Typically this is done by backing up to a portable device of somesort thatrsquos then physically transferred tothe central site and copied to the backup server Make sure to discuss the optionsyour backup vendor can offer in this area

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

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Storage efficiency

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Preserving The Worldrsquos Most Importan

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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Taking the cloudmore seriously

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Storage efficiency

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

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55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 27: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Up to 85 of computing capacity sits idle in distributed environmentsA smarter planet needs smarter infrastructureLetrsquos build a smarter planet ibmcomdynamic

IBM the IBM logo and ibmcom are trademarks of International Business Machines Corporation registered in many jurisdictions worldwide A current list of IBM trademarks is available on the Web at ldquoCopyright and trademark informationrdquo at wwwibmcomlegalcopytradeshtml

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

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Storage virtualizationmade easy

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Mobile backup

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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Download a complimentary white paper Bringing an End to Storage Wastewwwpillardatacomendwaste

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

bull Preventing Data Overload

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bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

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bull Exagrids Eye on Deduplication

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bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

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SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 28: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

The typical mobile computer user simply doesnrsquot think about backing uptheir data on a regular basis And requiring mobile users to synchronize theirimportant data to a file server also ignores one basic factmdashtheyrsquore mobile andtherersquos a good chance theydonrsquot have the bandwidthto synchronize large filesor lots of smaller files

Given the increasedmobility of todayrsquos work-force a significant amountof what your companyconsiders its intellectualproperty may reside solelyon unprotected remote devices

WHY MOBILE BACKUP IS SO HARDUnfortunately there are reasons why remote and mobile backup data setshave typically been handled so haphazardly Itrsquos important to understandthese reasons before attempting to fix the problem

The main reason why both remote and mobile data sets arenrsquot treated the same way as data in the corporate data center is the most obvious onebecause theyrsquore not in the corporate data center Slow connections betweenremote sites or users and the central data facility mean the remote systemscanrsquot use the same backup software used in the data center Those backupapplications expect quick connections to servers in the data center and tendto perform very poorly when trying to speak to remote servers Bandwidthlimitations prevent the software from transferring large amounts of data and latency creates delays that cause chatty backup apps to make a lot ofroundtrips between the backup server and client

Another challenge is that the computers being backed up canrsquot be countedon to be powered on at all times the way servers are in a data center Mostlaptop users (and users of other types of remote devices) power down theirdevices or put them to sleep when theyrsquore not in use Less obvious perhapsis that users in remote data centers often do the same thing with their serversand desktop PCs Not a monumental issue but one that must be addressed

The next challenge is at the other end of the spectrum some users leavetheir computers onmdashand apps openmdash24 hours a day So any viable remotebackup system must address the issue of open (and possibly changing) files

Finally therersquos the requirement for bare-metal recovery In the corporatedata center there are plenty of alternatives when a piece of hardware failssuch as a quick swap of an already-imaged drive The best alternate a remote

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

28 Storage March 2011

Given the increasedmobility of todayrsquosworkforce a signifi-cant amount ofwhat your company

considers its intellectual property may reside solely onunprotected remote devices

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Virtualizationbull Build affordable virtualization solutions in small or

remote offices

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Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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See ad page 54

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bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull Virtualize Storage with IBM for an Enhanced Infrastructure

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SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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SPONSOR RESOURCES

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bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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SPONSOR RESOURCES

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 29: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

user may have is a WAN connection with a decent download speed and thehope that someone from corporate IT is available If your remote servers orlaptops have on-site service the vendor can replace the hard drive or any otherbroken components But then yoursquoll need some type of automatic recoverythat requires only the most basic steps (eg inserting a CD and rebooting)

REMOTE AND MOBILE BACKUP SOLVEDThe typical way the remote bandwidth challenge is solved today is by using ablock-level incremental-forever backup technology The key to backing up overslow links is to never again transfer data that has already been transferredFull backups are no more and even traditional incremental backups transfertoo much data You must back up only new unique blocks

Latency is a separate issue Just because a product does block-level incre-mental backups doesnrsquot mean it was designed for use as a remote applicationYou need to ensure that the backup software understands itrsquos communicatingover a remote connection and avoids ldquoroundtripsrdquo whenever possible Even if

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

29 Storage March 2011

DEVICES GETTING MORE MOBILE

iPad users come in two varieties those whouse the iPad to view data and those who useit to create or modify data You donrsquot have toworry about those in the first category But thesecond groupmdashthose who are actually creatingor altering information on the gomdashneeds to beinstructed on how to back up their devices Theeasiest way to do this is to make sure users

sync their iPad with their laptop or desktop PC and then ensure thatdevice gets backed up Itrsquos not a perfect solution but itrsquos probablythe best we have right now given the architecture of the iPad Themain challenge is that each application is given its own file spaceEven if therersquos an application that can back up data remotely overthe Internet it wouldnrsquot necessarily have access to the file spaceswhere data is being created or modified

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

wwwpillardatacom

copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Virtualizationbull Build affordable virtualization solutions in small or

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Cloud Computingbull Hybrid cloud solutions for combination local and

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NETGEARreg is Smart IT Not Big IT

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

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Taking the cloudmore seriously

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

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bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 30: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

wwwlsicomchannel

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

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Taking the cloudmore seriously

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Storage efficiency

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31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

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Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Preserving The Worldrsquos Most Importan

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Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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Taking the cloudmore seriously

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Storage efficiency

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Networking Old is new again

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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See ad page 54

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bull Corporate Laptop Backup - Best Practices

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bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

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bull Exagrids Eye on Deduplication

See ad page 21

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bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

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See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 31: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

you have a remote connection with enough bandwidth the latency of the con-nection can severely hamper your backup performance if your backup softwareisnrsquot prepared for it

DEDUPE DOES IT ALLThe technology that most people have adopted to solve many of these prob-lems is data deduplication which significantly reduces the number of bytesthat must be transferred A dedupe system thatrsquos aware of multiple locationswill only back up bytes that are new to the entire system not just bytes thatare new to a particular remote or mobile location So if a file has already beenbacked up from one laptop and the same file resides on another laptop thesecond instance of the file wonrsquot be backed up

There are two basic types of deduplication target deduplication (appliance)and source deduplication (software) Target deduplication appliances are de-signed to replace the tapeof standard disk drives inyour existing backup sys-tem so your backup soft-ware sends backup data to the appliance thatdedupes the backups andstores only the newunique blocks Using adedupe appliance has anadded benefit as switchingfrom tape to disk as yourinitial backup target will likely increase the reliability of remote site backups

To use target deduplication yoursquoll have to install an appliance at each remotesite and direct backups to the appliance After the appliance dedupes the remotesitersquos backup it can be replicated back to a central site Because it requires anappliance of some sort target deduplication isnrsquot appropriate for mobile data

Source deduplication is backup software that dedupes the data at the verybeginning of the backup process The server or mobile device being backed upcommunicates with the source deduplication server and ldquodescribesrdquo the seg-ments of data it has found that need to be backed up If the source dedupli-cation server sees that a segment has already been backed up the segmentisnrsquot transferred across the network This saves disk space on the server andreduces the amount of bandwidth the backup process uses

Source deduplication can be used to back up both remote sites and mobileusers All you need to do is install source deduplication software on the com-puter to be backed up and initiate the backup (This is a bit of an oversimplifica-tion of course and ignores the challenge of completing the initial full backup)

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

31 Storage March 2011

There are two basic types ofdeduplication target deduplication(appliance) and

source deduplication (software)

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copy 2010 Pillar Data Systems Inc All rights reserved Pillar Data Systems Pillar Axiom AxiomONE and the Pillar logo are all trademarks or registered trademarks of Pillar Data Systems

Putting your data on Pillar Axiomreg is the most efficient way to boost productivity cut costs and put more money to the bottom line

Donrsquot put up with the wasteful ways of legacy storage systems They are costing you way too much in floor space energy and money

Make the move to Pillar Axiom the worldrsquos most efficient system because itrsquos truly Application-Aware Get the industryrsquos highest utilization rate ndash up to 80 Guaranteed Slash energy costs Save floor space Reduce TCO by as much as 50 And increase user satisfaction immeasurably

Itrsquos time to Stop Storage Waste and see how efficient you can be wwwpillardatacom

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

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bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull Six Must Have Features for Corporate Laptop Backup

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bull Exagrids Eye on Deduplication

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bull The SystemsManagement Buyers Guide

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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SPONSOR RESOURCES

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bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 32: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Reliablebull 5 year warranty

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 33: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

CONTINUOUS BACKUP OF REMOTE DATAAnother technology that should be considered for remote site and mobile userbackup is continuous data protection (CDP) Think of CDP as replication with aldquobackrdquo button Like replication itrsquos a continuous process that runs throughoutthe day incrementally transferring new blocks to a remote backup server Butunlike standard replication products CDP systems also store a log of changesso that a protected system can be restored to any point in time within its re-tention period in a few seconds or less While a traditional backup system (in-cluding one using deduplication) can restore a client to the last time a backupran a CDP system can restore a client to only seconds ago since the backupis continuously occurring A CDP product can be used to back up both remotesites and mobile users because itrsquos also a block-level incremental-forevertechnology

INTEGRATED DATA PROTECTIONRemote sites may have another option using whatrsquos sometimes referred toas self-healing storage This broad term refers to storage that has backup andrecovery integrated as core features Typically itrsquos used to describe storagearrays that use redirect-on-write snapshot technology to provide historicalversions of blocks and files within the volume being protected The snapshotsare then replicated to another volume (typically located in an alternate location)providing both history and relocation of data without using traditional backupmethodologies To use one of these products to back up a remote site wouldof course require installing a storage array at each remote site that wouldreplicate to another larger array in a central site

WHAT ABOUT THE CLOUDA cloud backup service is simply another method of delivering one of theabove options Some cloud backup services use source dedupe while othersuse CDP And some services provide an on-site target appliance that thenreplicates to the cloud or acts as a target for the replicated backups fromyour deduplication appliance Some self-healing storage arrays know how to replicate to the cloud as well

The bare-metal recovery issue is one that can only be addressed with abackup software product or service that has the feature built into the productGive careful consideration to the importance of this feature for your environ-ment And like everything else in IT donrsquot just believe what the vendors saytest the product or service to see if it does exactly what you need it to do

You should also ask how a vendorrsquos products handle backing up systemsthat arenrsquot always turned on or connected to the WAN While most products

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

33 Storage March 2011

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

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Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

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Our award-winning DXireg-Series appliances deliver a smart time-saving approach

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Faster performance Easier deployment Lower cost

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Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

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Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

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51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Preventing Data Overload

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bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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See ad page 54

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bull EMC VNX Family - Unified Storage Storage Software Networked Storage

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SPONSOR RESOURCES

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bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

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See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

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bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

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SPONSOR RESOURCES

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bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 34: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

and services can accommodate these occurrences the way they do it cansignificantly impact the user experience Suppose for example that a laptophadnrsquot been connected to the Internet for a long time and when it finally didconnect the backup products started the long-overdue backup That mightseem like a good idea but it may also consume all of the laptoprsquos availableresources That could prompt a help desk call or cause a user to stop thebackup process when it interferes with other work Make sure you understandthe load the backup application places on the system itrsquos backing up undervarious conditions 2

W Curtis Preston is an independent consultant writer and speaker He is thewebmaster at BackupCentralcom and the founder of Truth in IT Inc

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

34 Storage March 2011

Quantumrsquos DXi-Series Appliances with deduplication provide higher performance at lower cost than the leading competitor

Preserving The Worldrsquos Most Important Data Yourstrade

Contact us to learn more at (866) 809-5230 or visit wwwquantumcomdxi

copy2011 Quantum Corporation All rights reserved

Quantum has helped some of the largest organizations in the world integrate

deduplication into their backup process The benefi ts they report are immediate and

signifi cantmdashfaster backup and restore 90+ reduction in disk needs automated DR

using remote replication reduced administration timemdashall while lowering overall costs

and improving the bottom line

Our award-winning DXireg-Series appliances deliver a smart time-saving approach

to disk backup They are acknowledged technical leaders In fact our DXi6500 was

just nominated as a ldquoBest Backup Hardwarerdquo fi nalist in Storage Magazinersquos Best

Product of the Year Awardsmdashitrsquos both faster and up to 45 less expensive than the

leading competitor

Get more bang for your backup today

Faster performance Easier deployment Lower cost

provide higher pleading competi

Preserving The Worldrsquos Most Importan

Contact us to learn more at (8

copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

Can users perform full-text search amp recovery from the Windows START button

Can you access your PC data from a tablet or smartphone When your PC is switched off

Enterprise-class endpoint backup and data manage-ment that runs on your existing infrastructure securely behind your firewall Designed for IT pros managing mobile users and distributed sites who donrsquot want to look through backup logs every day (thatrsquos you right)

Contact us to learn more at 866-831-1821 or try Copiun at wwwcopiuncomcopiun-sandbox

Now You Can

Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

copy2011 Copiun Inc All rights reserved

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Networking Old is new again

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

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bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

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bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 35: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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copy2011 Quantum Corporation All rights reserved

Q

d

s

u

a

O

t

j

P

le

G

F

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

Infortrend Corporation2200 Zanker Road Suite 130 San Jose CA 95131 salesusinfortrendcom

Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

Get more do more with Infortrend ESVA -The perfect balance between affordability and performance

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

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STORAGE

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Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Desktop Virtualization The New Face of the Enterprise Desktop

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bull The SystemsManagement Buyers Guide

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

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bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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bull Video Extend SAS Beyond Todays DAS Environments

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bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

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bull Special Report Top Midrange Array Storage Controllers

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bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

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bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 36: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

36 Storage March 2011

EVERY COMPETITION has its winners and losers and the latestStorage magazineSearchStoragecom Quality Awards for enterprise arrays is no exception NetApp Inc is the clear

winner in a very competitive field but it doesnrsquot seem appro-priate to call the other five vendors losers as scores across the

board were impressively highmdashonly 034 points separated NetApprsquos highoverall rating and the lowest score

NetApp topsenterprise

arraysfield again

A very strong group of enterprise array vendors racked upsome of the highest scores wersquove seen to date on the sixth

edition of the Quality Awards for enterprise arraysBY RICH CASTAGNA

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

wwwinfortrendcom

ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

ESVA optimizes return on investment simplifies storage infrastructure and maximizes application productivity In 2010 the ESVA F60 achieved superior SPC Benchmark 1TM results and delivered

bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

Detailed full disclosure information for this SPC Benchmark 1TM Result may be found at httpwwwstorageperformanceorgresultsbenchmark_results_spc1a00088

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Storage Management Control Your Data

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 37: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

37 Storage March 2011

OVERALL RATINGSThis is the second consecutive time NetApphas finished first after sharing top honorswith EMC Corp on the fourth edition of theQuality Awards Such a solid showing fromNetApp should convince any remainingskeptics that NetApp isnrsquot just network-attached storage (NAS) anymore NetAppcruised into the lead with an overall 671 bytaking top honors in four of the five ratingcategories including a couple of narrowvictories for sales-force competence andinitial product quality Hitachi Data Systemsfinished a strong second with a score of661 while EMC and IBM were deadlockedin third with a score of 653

Usersrsquo ratings were overwhelminglypositive For the first time all vendors andtheir product lines racked up scores of600-plus in every category Average cate-gory scores were also the highest wersquoveseen in six iterations of the enterprise array survey and the overall average ratingwas the highest to date Clearly enter-prise storage system vendors are doing a good job of meeting the needs of theirusers

SALES-FORCE COMPETENCENetApp just barely nudged out Hitachi inthe sales-force competence rating cate-gory The six statements in the category all relate to how well a vendorrsquos sales andsales support teams respond to the needsof their prospective customers NetApp finished first for two statements ldquoMysales rep is knowledgeable about my industryrdquo (666) and ldquoMy sales rep under-stands my businessrdquo (656) Hitachi rankedhighest for ldquoMy sales rep is flexiblerdquo (661)and ldquoMy sales rep is easy to negotiatewithrdquo (645) EMCrsquos 678 led a bevy of strong

OVERALL RANKINGS ENTERPRISE ARRAYS

400 450 500 550 600 650 700 750

671 NetApp

661 Hitachi

653 EMC

653 IBM

645 3PAR

637 HP

PRODUCTS IN THE SURVEY AND KEY TO GRAPHSThese products were

included in the sixth QualityAwards for enterprise arrayssurvey (number of responses

in parentheses)

n 3PAR InServ Storage Server T400T800 or S400S800 (32)

n EMC Symmetrix DMXDMX-3DMX-4 V-Max (240)

n Hewlett-Packard XP Series or StorageWorks P9000 Series (126)

n Hitachi Data Systems USPUSP VVSP Series (95)

n IBM DS8000 Series or XIV Storage System (106)

n NetApp FAS6000 Series or V6000 (123)

Fujitsu Eternus DX8400DX8700

Did not receive enough responses to be included in the final results

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Virtualizationbull Build affordable virtualization solutions in small or

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

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Taking the cloudmore seriously

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50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 38: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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ESVA (Enterprise Scalable Virtualized Architecture) is a high-performance SAN solution for mid-range enterprises With high-end hardware capabilities and excellent software features including bull thin provisioning bull automated storage tiering bull snapshot bull volume copymirror bull remote replication

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bull a throughput result of 18048853 SPC-1 IOPS with an average response time of 838 milliseconds (with the system at a 100 percent workload level) bull an average response time of 179 milliseconds (at a 10 percent workload level) bull best-in-class SPC-1 Price-Performance of $512 SPC-1 IOPS

To learn more about Infortrendrsquos ESVA storage solution bull visit wwwinfortrendcomproductsfamiliesESVA bull Tel 408-988-5088 bull email salesusinfortrendcom

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Data Storage Optimized for Mid-range Enterprises Proven Excellence with Best-in-Class PricePerformance

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

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40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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bull Virtualize Storage with IBM for an Enhanced Infrastructure

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SPONSOR RESOURCES

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SPONSOR RESOURCES

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bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 39: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

39 Storage March 2011

scores for the statement ldquoThe vendorrsquossales support team is knowledgeablerdquo

Praise was spread around fairly liberallyin the sales-force competence categorywith four vendors leading on at least onestatement Overall the average for all sixproducts is the highest sales satisfactionrating registered to date on the enterprisearray Quality Awards

INITIAL PRODUCT QUALITYA sales team may pave the way for itscompanyrsquos products but the true testdoesnrsquot happen until the system is un-crated racked and declared ready to runNetApp prevailed again in this category but by such slim a margin (001 point) over3PAR that it would be more accurate tocall it a statistical dead heat 3PAR flirtedwith the 700 mark with a score of 697 for

INITIAL PRODUCT QUALITY

400 450 500 550 600 650 700 750

675 NetApp

674 3PAR

658 Hitachi

653 IBM

649 HP

633 EMC

ABOUT THE QUALITY AWARDSThe Storage magazineSearchStoragecom Quality Awards are designed toidentify and recognize products that have proven their quality and reliabil-ity in actual use The results are derived from a survey of qualified readerswho assess products in five main categories sales-force competence initial

product quality product features product reliability and technical supportOur methodology incorporates statistically valid polling that eliminates market share asa factor Our objective is to identify the most reliable products on the market regardlessof vendor name reputation or size Products were rated on a scale of 100 to 800 where800 is the best score A total of 441 respondents provided 727 system evaluations

SALES-FORCE COMPETENCE

400 450 500 550 600 650 700 750

655 NetApp

651 Hitachi

641 EMC

633 IBM

633 3PAR

609 HP

A sales team may pave the way for its companyrsquosproducts but the true testdoesnrsquot happen until the

system is uncrated rackedand declared ready to run

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

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ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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SPONSOR RESOURCES

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bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

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bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

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bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 40: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

40 Storage March 2011

ldquoThis product was easy to get up and runningrdquo which helps to validate its claimas being among the easiest-to-use arrays

Hitachirsquos 678 and 3PARrsquos 677 led for the statement ldquoI am satisfied with the level of professional services this product requiresrdquo and NetApp ranked highestfor three statements relating to defect-free installations little need for vendorintervention and ease of use Hitachi garnered the crown for the key statementldquoThis product delivers good value for the moneyrdquo with a 673 NetApp was secondfor the statement with a 662

Scores were high in the initial product quality rating category and winningmargins were barely measurable With strength across the board it appearsenterprise data storage vendors are making good first impressions by gettingtheir products up and running as quickly and painlessly as possible

PRODUCT FEATURESEven when a good sales experience is reinforced by solid initial operations the acid test for an enterprise storagesystem ultimately comes down towhether or not it does all the things youneed it to do Once again all productsfared extremely well in the product features category with NetApp leading the pack with a 686 score highlighted byone of only two 700-plus scoresmdasha 711 forldquoThis productrsquos snapshot features meetmy needsrdquo Thatrsquos probably not a hugesurprise as NetApp is known for its snap-shot prowess and has done well in thatarea on previous Quality Awards

NetApp nearly swept the product features category getting scores close to 700 for two other statements ldquoThis productrsquos mirroring features meet myneedsrdquo (696) and ldquoOverall this productrsquos features meet my needsrdquo (691) Forthe lone statement NetApp lost out on EMC flexed its scalability muscles but fell just shy of the 700 mark with a still-striking 698 for ldquoThis productrsquoscapacity scales to meet my needsrdquo

PRODUCT RELIABILITYWith many enterprise array purchases carrying six- or seven-digit price tagsthe tipping point for an investment of that size is likely to pivot on how reliablythe product performs over a period of time Here too enterprise storage vendorscan pat themselves on the back a little as the product reliability category netted

PRODUCT FEATURES

400 450 500 550 600 650 700 750

686 NetApp

667 EMC

656 IBM

654 Hitachi

642 HP

631 3PAR

Can you backup mobile userswho donrsquot VPN in Without opening any firewall ports

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

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Cloud Computingbull Hybrid cloud solutions for combination local and

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Reliablebull 5 year warranty

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Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

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bull Virtualize Storage with IBM for an Enhanced Infrastructure

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SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 41: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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Backup securely with or without a VPNFor remote sites WAN backup LAN recoveryTruly non-intrusive backup-while-idle near CDPNative OS user search amp restore with no trainingObject-based deduplication 95 storage savings

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STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

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43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

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45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Virtualizationbull Build affordable virtualization solutions in small or

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Cloud Computingbull Hybrid cloud solutions for combination local and

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ReadyNASreg Pro 4

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Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

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Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

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bull Corporate Laptop Backup - Best Practices

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bull EMC VNX Family - Unified Storage Storage Software Networked Storage

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SPONSOR RESOURCES

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bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

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bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

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bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

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bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

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bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

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SPONSOR RESOURCES

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bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

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SPONSOR RESOURCES

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 42: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

42 Storage March 2011

the highest average score among the fiverating categories Four of the six productsin the current survey turned in their bestscores in this category with Hitachi beat-ing all comers with a very solid 685 ratingEMC (678) and IBM (672) had their bestcategory results for product reliability andfinished second and third respectivelyHewlett-Packard (HP) Co also netted itsbest point total finishing with a 657 thatplaced it fifth in this strong field

Hitachi earned high scores for four ofthe five statements in this category andmissed snagging the fifth by a mere 003points The true test of reliability is unin-terrupted service and all products in this

survey were rated at 650 or better for the critical statement ldquoThis productexperiences very little down timerdquo Hitachi and EMC share the top spot forthat statement both within a hairsbreadth of 700 with identical 697 scores

Meeting expectations is also a key gauge of reliability Again all six productscame through with scores of 650 or higher for ldquoThe product meets my service-level requirementrdquo highlighted by Hitachirsquos 698 and EMCrsquos nearly as dazzling 696

TECHNICAL SUPPORTStuff happens And sometimes that stuff happens to a very large very expen-sive storage array No storage manager wants to be the one who has to pickup the phone and make ldquothe callrdquo but whenitrsquos unavoidable a quick and effective replyis the best way a vendor can soothejagged nerves

When it comes to delivering support as promised our vendors fared well withall six netting their highest scores in thetechnical support category for ldquoVendorsupplies support as contractually speci-fiedrdquo Hitachirsquos 700 nosed out NetApp (697)for that statement and racked up only thethird 700 statement score in the surveyalong the way There truly werenrsquot anyweak performances when it comes tomeeting usersrsquo expectationsmdashHPrsquos 626might have trailed the pack but itrsquos a

TECHNICAL SUPPORT

400 450 500 550 600 650 700 750

670 NetApp

656 Hitachi

650 IBM

646 EMC

645 3PAR

626 HP

PRODUCT RELIABILITY

400 450 500 550 600 650 700 750

685 Hitachi

678 EMC

672 IBM

669 NetApp

657 HP

641 3PAR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

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ShadowProtectreg makes mefast flexible and reliablerdquo

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New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

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Cloud Computingbull Hybrid cloud solutions for combination local and

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bull No consultants required no new training or licenses needed

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Simplebull Easy installation

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bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 43: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

43 Storage March 2011

sturdy score nonethelessUltimately NetApp prevailed in the

technical support category by toppingthe ratings on five of the eight state-ments second-place Hitachi ranked highest on the other three In the six enterprise arrays surveys wersquove fieldedNetApprsquos 670 and Hitachirsquos 656 technicalsupport category scores are the highestrecorded to date

WOULD YOU BUY AGAINThe strongest indicator of product satis-faction might be a customerrsquos willing-ness to make the same purchase all over again When we asked that questionon this survey the results mapped veryclosely with the overall rankings for serviceand reliability Thatrsquos great news for vendorslike NetApp and Hitachi whose prospectsof repeat customers look very promisingwith buy-again numbers north of 90But the overall picture has to be prettypleasing to data storage vendors andusers alike as 87 of all users in our survey said that with the benefit of hindsight theyrsquod still buy the same storage systems again 2

Rich Castagna (rcastagnastoragemagazinecom) is editorial director of the Storage Media Group

ENTERPRISE ARRAY HEAVY LIFTERS

Average installed capacities of the enterprise arrays as

reported by survey respondents

VENDOR TB

Hitachi 143

EMC 142

IBM 122

3PAR 120

NetApp 106

HP 84

ALL THINGS CONSIDERED WOULDYOU BUY THIS PRODUCT AGAIN

65 70 75 80 85 90 95 100

92 NetApp

90 Hitachi

88 EMC

88 IBM

86 HP

81 3PAR

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 44: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

ldquoWhen it comes todisaster recovery

ShadowProtectreg makes mefast flexible and reliablerdquo

ldquoWhen it comes to yoga Irsquom just a disasterrdquo

The fast flexible and reliable disaster recovery data protection and system migration that ShadowProtect Servertrade 4

provides will not only help expand your businessbut give you the time to ldquoexpand your mindrdquo as well

New VirtualBoottrade technology lets you recovera 15 TB server in just 3 minutes Download a FREE trial version at wwwstoragecraftcomshadow_protect_serverphpItrsquos simple and painless (Thatrsquos more than can be said for the Lotus position)

StorageCraft is proud that ShadowProtecthas been selected as a finalist for the

Storage magazineSearchStoragecom2010 Product of the Year

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 45: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

45 Storage March 2011

sPENDING ON CLOUD infrastructure and services is expected to increase thisyear according to ESGrsquos recent 2011 spending intentions survey In late 2009when we asked survey respondents about their organizationrsquos IT priorities for 2010 and the first half of 2011 cloud computing and software-as-a-service(SaaS) ranked 22 and 24 respectively out of the 24 priorities listed In late2010 when asked about IT priorities in 2011 and the first half of 2012 respon-dents ranked cloud computing in the top half of the priority list (number 12)and placed SaaS in spot 14

That bodes well for cloud infrastruc-ture and service providers and indicatesthat the cloud investigations users conducted in 2010 could translate toreal investments in 2011

BACKGROUNDTo assess IT spending priorities overthe next 12 to 18 months ESG recentlysurveyed 611 North American andWestern European senior IT professionalsrepresenting midmarket (100 to 999employees) and enterprise-class (1000employees or more) organizations Aspart of the survey we asked questionspertaining to both SaaS and infrastruc-ture-as-a-service (IaaS) The survey defined those two cloud-related termsas follows

SaaS A software distribution model in which applications are hosted by avendor or service provider and made available to customers over a networktypically the Internet

IaaS A computing model in which the equipment including servers storageand networking components used to support an organizationrsquos operations is

hot spots | terri mcclure

Cloud projectsclimbing IT priority lists

A recent ESG survey indicates that investments in cloudservices and related infrastructure will increase

in 2011 meaning the much-hyped technology may start to hit its stride in the real world

In late 2010 whenasked about IT priorities in 2011 andthe first half of 2012respondents rankedcloud computing inthe top half of thepriority list (number12) and placed SaaSin spot 14

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 46: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

46 Storage March 2011

hosted by a service provider and made available to customers over a networktypically the Internet The service provider owns the equipment and is respon-sible for housing running and maintaining it with the client typically payingon a per-use basis

ADOPTION TRENDSWhile 34 of respondents currentlyuse SaaS a surprising 91 reporttheyrsquoll spend at least some of their2011 budget dollars on SaaS-based applications But even at those organi-zations using SaaS today usage ispretty light a large majority (70) use SaaS to deliver fewer than 20 of their applications and only 15 of respondent firms deliver 31 ormore of their applications via SaaS

That picture changes significantlywhen we asked users to consider how theyrsquoll deliver applications three yearsfrom now the percentage of those survey takers using SaaS for 20 or fewerof their applications shrinks to 39 while the percentage of those respondentsdelivering 31 or more of their applications via SaaS rises to 30

The apps respondents deliver via SaaS run the gamut of enterprise appsfrom accounting and financial applications to security but the ones mostlikely to be delivered via SaaS are customer relationship management (CRM)and email which isnrsquot surprising given the amount of data they generate

Among ESG survey takers IaaS usage is lower than that of SaaS with 17currently using IaaS to meet infrastructure requirements But things are look-ing up on the IaaS side as well with 81 of respondents reporting theyrsquoll spendat least some of their 2011 budget on the technology

THE BIGGER TRUTHFew technologies have been able to maintain the level of hype that cloud hasfor IT users and vendors alike Typically new technologies just canrsquot live upto the expectations and promises vendors set Cloud is bucking the trendfor multiple reasons not the least of which is that no one can seem to agreeon exactly what it is ESG believes cloud is ultimately a service delivery modelwhere applications (andor infrastructure) are delivered as a service to aconsumer The jury is still out in end-user and vendor circles as to whetheror not ldquoprivate cloudrdquo counts as a cloud initiative or is just IT with a services-oriented architecture

While 34 ofrespondents currently use SaaSa surprising 91report theyrsquoll spendat least some oftheir 2011 budgetdollars on SaaS-based applications

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 47: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

EMC 1 IN STORAGE FOR VIRTUALIZATION

Source Enterprise Strategy Group (ESG) Data Center Spending Intentions Survey EMC2 EMC the EMC logo and where information lives are registered trademarks or trademarks of EMC Corporation in the United States and other countries copy Copyright 2010 EMC Corporation All rights reserved 2128

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 48: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

48 Storage March 2011

The spending survey indicates that reducing costs especially operationalcosts is still one of the top drivers of IT decision making in 2011 and thecloud certainly seems to be gaining popularity as a means to help containoverall IT costs Because the value propositions for IaaS and SaaS are relatedto cost reduction ESG specifically asked users about cost-cutting measuresand saw cloud computing start to emerge as a viable option Organizationsin cost-reductioncontainment mode indicate a significant increase in theirwillingness to consider cloud computing services (23 in 2011 vs 17 in2010 and 13 in 2009) as a way to control IT costs this year

Will cloud strategies continue their momentum in 2011 ESG research in-dicates they willmdashat least from the end-user side Because 2010 was mostlyabout cloud talk and hype and end users now indicate a willingness to investin this area in 2011 it looks like vendors will have to ldquoput up or shut uprdquo anddeliver on the cloud promises theyrsquove been making to deliver truly cost-effectivesecure and available IT services 2

Terri McClure is a senior storage analyst at Enterprise Strategy Group Milford Mass

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 49: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Products shown above are GSA compliant

ReadyNASreg Pro 6 ReadyNASreg 3100 2100 4200 3200 (Top to Bottom)

The 5-Year Hardware Warranty only covers hardware fans and internal power supplies and does not include external power supplies or software Hardware modifications or customization void the warranty The warranty is only validfor the original purchaser and cannot be transferred

NETGEAR the NETGEAR logo Connect with Innovation ReadyNAS ReadyNAS Replicate and ReadyNAS Vault are trademarks andor registered trademarks of NETGEAR Inc andor its subsidiaries in the United States andor othercountries Other brand names mentioned herein are for identification purposes only and may be trademarks of their respective holder(s) Information is subject to change without notice copy 2010 NETGEAR Inc All rights reserved

Backup Restore and Disaster Recoverybull Ideal disk-to-disk backup target for Symantec

Acronis or StorageCraft

bull Improves Symantec Backup Exec performance by upto 120

bull Ideal target for virtual machine backups with Veeamor Vizioncore

bull ReadyNASreg Replicate option for easy offsite disasterrecovery

Virtualizationbull Build affordable virtualization solutions in small or

remote offices

bull VMware Ready and Microsoft Hyper-V certified

bull Ideal backup target for VMs

Cloud Computingbull Hybrid cloud solutions for combination local and

hosted file sharing and archiving

bull FREE 100GB of ReadyNAS Vault offsite archive

ReadyNASreg Pro 4

ReadyNASreg Pro 2

Learn more atwwwnetgearcombusiness_storage

NETGEARreg is Smart IT Not Big IT

Simply SmarterBusiness Storage for Virtualization

Backup and Cloud Computing

Reliablebull 5 year warranty

bull Enterprise hard disks

bull Embedded offsite archive

Affordablebull A fraction of the cost of traditional

vendors

bull No consultants required no new training or licenses needed

bull Reduces operating expenses through automation

Simplebull Easy installation

bull Painless remote management

bull Embedded VPN remote access

bull Centralized multi-site backup manage-ment with optional ReadyNAS Replicate

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 50: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

50 Storage March 2011

aS WE APPROACH the end of the first quarter of the new year it looks like wersquoregoing to see a much different data storage industry in 2011 Thatrsquos a goodthing because 2010 was a minefield for strategic planningmdasha roller coaster ofexcitement with the unpredictable future that goes with it Game-changingtechnologies made their real first forays into the market including cloudstorage service providers cloud on-ramps cloud backup cloud disaster recovery (DR) and others In a recentemerging market forecast TanejaGroup identified storage products associated with the cloud as growinginto a $10 billion market by 2014 As wesee it wersquore out of the gate with newproduct innovations and now engagedin a steady march

In 2010 there was turmoil amongthe vendor ranks like wersquove never seenwith major vendor strategy shifts anumber of small vendor failures andmind-boggling acquisitions WhewSurely all that vendor turmoil must betapering off We need a breather andwe need to look at whatrsquos coming

Therersquos definitely one thing thatneeds more attention performanceFor too long wersquove been fixated on capacity and that preoccupation hassapped some of the innovation energy that should have been directed towardsolving performance problems And because of that neglect many of us arefinding we need better performance than we can get from todayrsquos standardapproaches It seems most of the activity in 2008 and 2009 was centered oncapacity and in 2010 that capacity discussion shifted to the cloud Lately itseems performance only comes up when the subject is solid-state storage

readwrite | jeff boles

Letrsquos focus on storage performance in 2011

For the last few years our focus has been on storagecapacity and dealing with astronomical data growth

rates In the process wersquove overlooked storageperformance but promising developments are afoot

In 2010 there wasturmoil among thevendor ranks likewersquove never seenwith major vendorstrategy shifts anumber of smallvendor failures andmind-bogglingacquisitions

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 51: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

an alternative ill-suited to many of the storage systems most of us have in our data centers That might be the future but performance needs to beaddressed now

But Irsquom beginning to see performance solutions that have some real promiseDiscussions around solid-state technology have made us acutely aware ofthe massive limitations of many traditional storage systems And that seemsto have inspired some innovators to do something entirely different

Despite what some vendors are peddling it wonrsquot be the next generation of ridiculously complex application-specific stacks of hardware that willspeed up your database or your number crunching And donrsquot expect biggerand cheaper appliances to deliver on that promise either Those and similarsolutions have been anathema for strategic planning How are you supposedto build a performance strategy from aproliferation of one-trick ponies thatcanrsquot adapt to changing demands or themassive shared access required withintodayrsquos consolidating data centers

My requirements for doing betterarenrsquot that stringent Fundamentally asolution should give you real perform-ance and promise to scale well beyondwhat you need today Simultaneouslyit shouldnrsquot look entirely different thanyour existing storage It should stillstore data in a permanent reliable way and be just as serviceable Wersquoreseeing vendors like Alacritech Avere Kaminario and others think hard abouthow to deliver performance that fits into todayrsquos storage infrastructure with-out a massive integration effort and with the right capabilities to deliver future scalable performance without compromises in storage capabilities

One result of these emerging improved architectures for storage per-formance is a dramatic change in what we pay for IOmdashwhen assessed onthe basis of dollars per IO such systems have massively better costs thanrotational disk But those figures only tell part of the story Bad architecturescome at a price way beyond the difference in upfront costs The upfront costsof any performance solution with a bad architecture may well be compoundedby the operational costs incurred in the course of coping with and offsettingthe bad architecture such as

bull The cost of integration Integrating solutions that address a subset ofdata can require enormous effort

bull The cost of data protection Few solutions are built for primary long-term storage so the cost of data protection can increase significantlyWorse yet are the considerations for DR

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

51 Storage March 2011

Fundamentally asolution should give you real performance andpromise to scalewell beyond whatyou need today

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 52: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Hybrid ISE is that productGo to wwwxiotechcomhybrid-ise

ldquoSo I want some kind of product that can combine SSD and magnetic spindles into a single sort of ldquosuper volumerdquo which I can use for everything that happens on the VM host and then the storage virtualization software can automatically figure out which blocks (or whatever) should be magnetic and which should be SSDrdquo

BrianMaddencom Your independent source for application and desktop virtualization

Experience the future of virtual desktop infrastructure call 18664726764

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 53: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

bull The cost of replacement Solutions built without long service life as akey design criterion may reach a premature end of life The cost here isnrsquotjust about replacement but dealing with the effects of potential failureoften with strategies such as maintaining idle spare equipment

bull Cost of service Some products arenrsquot built for in-place service sothey may require specialized expertise for service or disruptive total replace-ments if a failure occurs

bull Cost of scale A product thatrsquos attractively priced for a single app mayeasily be a mismatch for other demands This can result in apps requiringmultiple storage systems capacity underutilization or compromising on performance

bull Cost of management Inadequate scaling can lead to sprawl and result in having to deploy multiple devices to satisfy different applicationneeds The cost of managing isolated systems can become enormous

And the bigger things get the more costs add up Irsquom not suggesting yourprimary storage vendor doesnrsquot have answers that address these issues assome are thinking pretty innovatively about how to extend controller capa-bilities But you need to make sure you have the right primary data storagevendor if yoursquore buying into their answer for performance For some theircurrent investments or intended new investments may never go far enoughThere may well be a significant deficiency in both the resulting value yoursquoregetting per dollar and in the competitive business capabilities of your result-ing IT systems

It may be a year of only incremental improvement but when it comes toperformance even small improvements can transform how we do storageWith a few innovators on the horizon it looks like 2011 could see even greaterstrides 2

Jeff Boles is a senior analyst at Taneja Group He can be reached at jefftanejagroupcom

STORAGE

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

53 Storage March 2011

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 54: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Still a struggle to achieve storage efficiencyEverybodyrsquos talking about storage efficiency but how are we really doing Judg-ing from our latest survey there seems to be a sense of accomplishment tem-pered by a bit of frustration While most respondents feel their companies usestorage pretty efficiently therersquos still plenty of disk capacity being wasted becauseadmins just donrsquot have the right tools to stay on top of the situation More thantwo-thirds (68) say theyrsquod do a better job if they had better tools and nearly halfare looking for a little more cooperation from users (45) and management (44)Most storage pros (66) rely on the tools that came with their storage systemsto manage capacity use while 30 have third-party apps to help them out Amongthe newer storage efficiency technologies storage tiering (49) and archiving(48) are most commonly used to keep the lid on capacity And while everybodycomplains about storing old useless files only 31 have a process or program inplace for data deletion mdashRich Castagna

ldquoAlthough therersquos no shortage of vendor-supplied tools and third-party software to assist todayrsquos storage managers it remains nearly impossible to alter storage consumersrsquo behaviorrdquo mdashSurvey respondent

snapshot

How would you rate your companyrsquos use of disk storage capacity

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

55 Storage March 2011

69Which of these capacity management tools

do you currently use at your company

49 Storage tiering (automated or manual)

48 Data archiving

38 Thin provisioning

33 Primarynearline data compression or deduplication

5 None

Multiple selections permitted

Donrsquot have a regular programor process for data deletion

3

31

13

How much disk capacity would you estimate is wasted in your company

because you lack the tools to manage and use disk capacity efficiently

0 10 20 30 40

More than 75 ofinstalled capacity

50 to 75 of installed capacity

25 to 50 of installed capacity

10 to 25 of installed capacity

Less than 10 ofinstalled capacity

Excellentwersquore very efficient

7

Good 27

Terriblewersquore

wasting lots of disk

capacity3

Poor12

So-So therersquos room forsome improvement

51

40

13

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 55: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

Networking Old is new again

Storage virtualizationmade easy

Storage for VDI

Mobile backup

Quality AwardsEnterprise

arrays

Taking the cloudmore seriously

Capacity or performance

Storage efficiency

Sponsorresources

56 Storage March 2011

STORAGE

COMING IN

APRIL Virtual Disaster Recovery (DR)

One of the most touted benefits of virtualization is that the hardware isuntethered from the OSes and appsusing it We cover the best ways toleverage virtual machines and virtual-ized storage for more reliable DR

Thin Provisioning In DepthThin provisioning effectively allowsoverprovisioning of storage systemsby only allocating disk capacity toapps when they write to disk Butvendors implement thin provisioningdifferently so users need to knowhow an arrayrsquos thin provisioningprocess matches their applications

Exchange 2010 and Storage Systems

With a new version of MicrosoftrsquosExchange Server came new issuesrelated to the storage that supportsthe mail server system Will new fea-tures such as built-in archiving and e-discovery capabilities replace pur-pose-built third-party products Andwill improved replication make it easierto protect Exchange mailstores Weprovide some best practices

And donrsquot miss our monthly columnsand commentary or the results of

our Snapshot reader survey

TechTarget Storage Media Group

Vice President of Editorial Mark Schlack

Editorial Director Rich Castagna

Senior Managing Editor Kim Hefner

Executive Editor Ellen OrsquoBrien

Creative Director Maureen Joyce

Contributing EditorsTony Asaro James Damoulakis

Steve Duplessie Jacob Gsoedl W Curtis Preston

Executive Editor Ellen OrsquoBrien

Senior News Director Dave Raffo

Senior News Writer Sonia Lelii

Features Writer Carol Sliwa

Senior Managing Editor Kim Hefner

Associate Site Editor Megan Kellett

Editorial Assistant Allison Ehrhart

Senior Site Editor Andrew Burton

Managing Editor Heather Darcy

Features Writer Todd Erickson

Senior Site Editor Sue Troy

Senior Site Editor Sue Troy

UK Bureau Chief Antony Adshead

TechTarget ConferencesDirector of Editorial Events Lindsay Jeanloz

Editorial Events Associate Jacquelyn Hinds

Storage magazine SubscriptionswwwSearchStoragecom

Storage magazine275 Grove Street Newton MA 02466

editorstoragemagazinecom

STORAGE

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 56: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

See ad page 12

bull Storage Management Control Your Data

bull Preventing Data Overload

See ad page 15

bull White Paper Increasing IT Efficiency in a Dynamic Data Center

bull Case Study Gaston County Leads the Way with Fluid Data Storage

See ad page 41

bull ESG Report Endpoint Data Protection - A Guide to Approaches and Top PurchaseConsiderations

bull IDC Technology Spotlight - Endpoint Data Backup and Security The Growing Need for aBetter Approach

bull Forrester amp Copiun Webcast - Enterprise PC Backup The New Fundamentals

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 57: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

See ad page 5

bull Desktop Virtualization The New Face of the Enterprise Desktop

bull Kane County Saves $1 Million with Server and Desktop Virtualization on Dell Servers andVirtualized iSCSI SANs

bull Breaking Down the Barriers to VDI with Dell EqualLogic iSCSI SAN Arrays

See ad page 54

bull Six Must Have Features for Corporate Laptop Backup

bull Corporate Laptop Backup - Best Practices

See ad page 47

bull EMC VNX Family - Unified Storage Storage Software Networked Storage

bull Online Event Dont miss the record breaking

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 58: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

bull eGuide Best Practices for Data Protection and Recovery in Virtual Environments

bull Forrester Research Virtualization and backup ndash the challenges and solutions

bull Exagrids Eye on Deduplication

See ad page 21

bull Hitachi IT Operations Analyzer Software

bull The SystemsManagement Buyers Guide

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 59: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

See ad page 8

bull 3PAR Storage Tailor-Made for Virtual Infrastructures

bull HP 3PAR F-Class Storage Systems A mid-range storage revolution for lean times

See ad page 27

bull Reduce your data storage footprint and tame the information explosion

bull Leverage the IBM Tivoli advantages in storage management

bull Virtualize Storage with IBM for an Enhanced Infrastructure

See ad page 38

bull Fresh Approaches to Storage Cost Management

bull Elementary School District Chooses Infortrend to Protect Data amp Maintain High Standardof Education

SPONSOR RESOURCES

See ad page 18

bull IDCWhitepaper Are Your PCs and Laptops Recovery and Discovery Ready

bullWhite Paper How to Measure ROI for Online PC Backup and Recovery

bullWhite Paper How to Categorize PC Online Backup and Recovery Providers for BetterDecision Making

See ad page 30

bull Video Extend SAS Beyond Todays DAS Environments

bull LSI SAS Switch Configuration Guide

See ad page 49

bull Printing Franchisee Uses NETGEAR to Protect Against Site-Wide Disasterreg ReadyNASreg2100

bull ReadyNASreg 3200 Boosts Financial Services Firm Productivity by Supporting 20 VirtualMachines Cutting Rack Space by 80 and Costs by Over 50

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 60: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

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  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 61: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

See ad page 32

bull Special Report Top Midrange Array Storage Controllers

bull Top 5 Advantages of Alternative Tier One Storage Vendors

See ad page 35

bull 7 Deduplication Questions to Consider Before Deploying for the Midrange Data Center

bull The Most Important Questions to Ask Before you Dedupe ndash Part 1

See ad page 44

bull StorageCraft ShadowProtect video tutorial

bull ShadowProtect Server 30-day trial eval

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page
Page 62: Vol.10 No.1 March 2011 The best storage for virtual desktopsdocs.media.bitpipe.com/io_24x/io_24682/item_371723/... · Managing storage for virtual desktops 13 Watch out for boot storms!

SPONSOR RESOURCES

See ad page 52

bull Virtual Desktop Infrastructure Strategies Ensuring success via Scale-out SAN

bull Top 10 ReasonsWhy Virtual Desktops Run Better on Xiotech Storage Blades

bull Video Xiotech VDI Interview at VMworld

See ad page 24

bull Back Up To The Compute Cloud

bull Checklist Key factors in planning a virtual desktop infrastructure

bull The first step toward a virtual desktop infrastructure The assessment

  • Cover
  • Table of Contents
  • For networks whats old is whats new
  • Three vendors still stalking storage virtualization
  • Managing storage for virtual desktops
  • Backup for remote and mobile devices
  • NetApp tops enterprise arrays field again
  • Cloud projects climbing IT priority lists
  • Lets focus on storage performance in 2011
  • Still a struggle to achieve storage efficiency
  • Editorial mastheadApril 2011 preview
  • Sponsor resource page