Storage Virtualization Software Technical Highlights

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STORAGE VIRTUALIZATION SOFTWARE

TECHNICAL HIGHLIGHTS

New releases in Q2 2009:

SANsymphony™ 7.0

SANmelody™ 3.0


2

FEATURE adds

Virtual Disk Pooling ≤32TB>32TBs … PetaBytes,

Tiered Storage Classes, SAN Domains

Synchronous Mirroring (High Availability)

HA PairN+1 redundancy, Tertiary mirror,

Alternate replication route, Prioritized order of resynchronization

High-speed Caching Included Linear Scaling, QoS control

Load Balancing Included Support for high-end, multi-path arrays

Thin Provisioning IncludedChoose virtual disk size, serially fill disks, Display real-time usage stats

RAID Striping IncludedHot spares automatically

replace failed drives

Virtual Disk MigrationIncluded + optional

migration between physical & VMs

Optional pooling of existing disks formatted with

Unix & other file systems

Online Snapshot IncludedSynchronized across groups of

virtual disks

Continuous Data Protection N/A Separately-priced CDP option

Remote Replication Included Many-to-many, Group-wide control

Analysis & Reporting via Perfmon + optional package

Extensive built-in choices + optional package superset

Centralized Management IncludedSAN, Performance, Diagnostics,

Associated objects managed as Groups

SANmelody SANsymphony


Major New Features

SANsymphony 7.0 & SANmelody 3.0 now run on Windows Server 2008 (32 & 64-bit)

Up to 1 TB “Mega Caches” per node

Advanced Site Recovery[Separately priced SANsymphony option]

Automatic Space Reclamation for Thin-Provisioned Volumes

Hypervisor migration (P-V-V) [Separately priced “Transporter” option]

Integration with VMware Virtual Center


High-Speed Caching

Accelerates disk I/O response from existing storage

Uses CPUs and memory from general purpose servers as powerful, inexpensive cache

Anticipates next blocksto be read & groups writes to avoid waiting on disks

SANsymphonySANmelody

Speeds up performance New!

Up to 1 TB Mega Cachesper node


Turbo-charged Virtual Disk I/O

CachedArray

CPU

Poll for Input

DiskSubsystems

WriteCoalesce

Outputfrom Cache

Pre-fetchHigh-SpeedLevel 1 Caching

Un-cachedArray

CPU

CPU

Disk Drive 4000 – 6000

DataCore L1 Cache <20

Array L2 Cache 250 – 300

CPU

Avg. Response (µS)

CachedArray


Advanced Site Recovery

Choose locations best suited to handle specific DR load

Viable with lower speedWAN circuits

Built-in central site restoration

Universal coverage for heterogeneous scenarios

Same automated process for Virtual & Physical systems

Spread DR responsibility across multiple smaller sites

SANsymphony

Optional

New!


VM

VM

DR Site y

Low Cost Alternative: 1-to-Many DR

VMVM

VMVM

Central IT site

HA

VM

VM

DR Site z

VM

VM

DR Site x

RemoteReplication

StorageVirtualization

• Thin pipes

New!


Advanced Site Recovery

Central IT site

Live(P)

Live(S)

Live

DR(S)

DR

Async Copy

HA Optional

HourlySnapshots

Transmit QueueSync

Mirror

SyncMirror

Mapped(online)

Mapped(offline)

12

DRCopy

Only torestore

TransmitQueue

Kept currentwith DR site

3DR Site x

Internet

WAN

DR(P)

New!


Thin Provisioning

Appears to computers as very large drives (e.g. 2 TB disks)

Takes up only space actually being written to

Dynamically allocates more real space when required

Reduces need to resize LUNs

Just enough space, just-in-time


New!

Space Reclamation


Free

Guessing on Allocation Leads to Waste

Disk 1

Free

Disk 1

Disk 2

Free

Disk 1

Disk 2

Disk 3

Free

Disk 1 Disk 2 Disk 3

Free

Capacity consumed whether used or not!

Few Blocks Actually Written To


Waste-Free Thin Provisioning

60% Free

Free

0

2TB

Free

0

2TB

Free

0

2TB

Actual = 0.4TB

V Disk 3

V Disk 2

V Disk 1

1TB

Expand asNeeded

No DeviceDependency

+ 2.0TB + 2.0TB + 2.0TB

6.0TB

Physical Disk Pool

0

VirtualAllocation:

0.4TB

Time to add more


Thin Provisioning Space Reclamation

0 Physical Disk Pool

Free

0

2TB

V Disk 1Space previously

allocated to deleted file

Free

0

2TB

V Disk 1Fill with zeroes

Release zero-filled space back to free pool

Recover space from deleted files in virtual volumes

New!


Physical/Virtual to Virtual Disk MigrationQuickest way to migrate from one Windows environment to a dissimilar physical or virtual server platforms

Source image rapidly available to destination

No waiting on lengthy disk-to-disk copies; they occur transparently in background

No error-prone conversions

DataCore handles differences with the same ease as any other virtual disks “Transporter” Option


New!


Rapidly Migrate from Physical to Virtual Virtualized Server

(Destination)

Physical Server(Source)

LAN

Boot Disk

Boot Disk

VD1

Copy

VD Storage

VD1 VD2 VD3 VD4

VD1

VD1

Snap

Transporter

VM

VM

TransporterAgent

• Agent exports disk image

• Unique ‘pass-thru’ technology sees, snaps & copies active source disk

• Boot copy modified to boot VM

• Converted disk mounted by destination as boot or data device

New

!


Virtual Disk Pooling

Split pool into tiers Create and assign virtual

disks of desired sizes Define access rights Share them among clients Expand capacity

without downtime Eliminate stranded space

Consolidate like or unlike disk resources

≤32 TB >> Petabytes

SANsymphony™SANmelody™


Load Balancing

Overcome typical storage-related bottlenecks

Spread load on physical devices using different channels for different virtual disks

Automatically bypassesfailed or offline channels

Improve response and throughput



RAID Striping

Circumvents drive failures

Spreads I/O across multiple spindles

Offloads RAID 0 & 1

Supports popular RAID devices in pool

Better protection & performance



Synchronous MirroringReal-time I/O replication for High-Availability

Eliminates SAN or storage as a single point of failure when combined with multipath I/O drivers

Enhances survivability using physically separate nodes

Updates two distributed copies simultaneously N+1

Redundancy


Pair


Virtual Disk MigrationTransparently move contents from one disk to another

Allows non-disruptive hardware disk upgrades for mirrored volumes

Clears & reclaims space occupied by original



Online Snapshots

Recover quickly atdisk speeds to known good state

Eliminate back-up window

Provide “live” environment for analysis, development& testing

Keep snapshots in lower tier, thin provisioned storage

Capture point-in-time images without tying up much disk space or make complete clones



Continuous Data Protection & Recovery

Dial back to restore an arbitrary point-in-time

Logs and timestampsall I/Os

No need to quiesce or interrupt applications

Return to any point-in-time withouttaking explicit backups

SANsymphony

Optional


Remote Replication

Perfect for disaster recovery or business continuity

Only needs a basic IP connection to secondary site

Bi-directional

Asynchronous

Keep distant copies without impacting local performance

1-to-ManyMany-to-1



SAN-wide Centralized Management

Automates laborious, repetitive tasks

Intuitive to operate

Universal tools work across like or unlike devices

Plug-ins for integration into Hypervisor consoles

Control and monitor all SAN resources from one console

2 Nodes SAN-wide



Analysis & Reporting

Reveals SAN resource consumption & performance trends

Assists with capacity planning, utilization & quality of service decisions

Export results to 3rd party tools for further analysis,charge-back & billing

Tracks & charts long-term SAN behavior


OptionalOptional


NON-STOP

LIGHTNING-FAST

WASTE-FREE

Storage Virtualization

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Storage Virtualization Software Technical Highlights