Diskeeper made its reputation with thetrademarked phrase “Set It and Forget It”®

meaning you just scheduled Diskeeper andforgot about it. Defragmentation was done on ascheduled basis keeping systems at peakperformance and reliability.

Times change though. Disk drives have grown toexponentially large proportions. With the growth ofdisk drives has come an explosion in the size andnumber of files stored on disk drives. Withterabyte drives (a trillion bytes) now readilyavailable and smaller drives selling for very littlemoney, you can store a LOT of stuff—practicallyanything. And file sizes continue to increase as well.

Documents with embedded graphics, largepresentations, scanned images, multi-media files,etc., are now residing on hard drives. The vastquantities of these and their inordinate size (plusthe fact that these media files need to residecontiguously on a disk for optimal use) present newchallenges for computer performance and reliabilitymaking defragmentation more critical than ever.

As disks grow bigger and files grow larger andmore numerous, defragmentation is required moreand more often to maintain a computer’s peakperformance and reliability. This makes it absolutelyvital to handle disk fragmentation as soon as itoccurs. But scheduling a resource-intensive task—such as daily or even hourly defragmentation—canbe a scary proposition for IT staff.

System tasks such as defragmentation, backupsand malware scans are therefore often scheduledfor offhours, or during downtime. This approach istaken to minimize the interference caused bymaintenance. Waiting for scheduled maintenancetasks, however, can introduce negative effectsbetween scheduled activities, and it can bringabout unavoidable negligence in mission criticalservers that cannot be taken off-line.

Additionally, the scheduling itself is amaintenance chore which adds administrativeoverhead. IT staff need to ensure scheduling isunderstood and correctly set for each system.Follow up is needed—did the job run, is it completeand so on.

InvisiTasking—Completely Automatic,Undetectable DefragmentationWhile many software products attempt to runinvisibly in the background and some strides have

been made, complete and utter transparency onmission-critical systems has never before beenachieved—until now.

InvisiTasking is a remarkable new technologywhich enables Diskeeper 2007 to run invisiblywith absolutely no intrusion on systemresources. As CPU and I/O resources are almostnever fully utilized, InvisiTasking’s transparency isachieved by undetectably tapping into theseunused system resources.

Software engineers sometimes attempt to shareresources by choosing lower CPU priorities to rununder, and past efforts have been made atthrottling disk. Windows® allocates CPU resourcesusing a kind of hybrid round robin/priority basedpre-emptive scheduling. One aspect of this schemecan cause low priority processes to unnecessarilypre-empt higher priority processes, starving themof CPU resources.

InvisiTasking utilizes a technique to avoid using acomputer’s resources when higher priorityprocesses need to run. InvisiTasking takes aproactive approach to instantly detect resourceusage, ensuring that Diskeeper never pre-emptsusers or primary services on a computer system.InvisiTasking is so good that it is all butimpossible to even detect whether Diskeeper2007 is running.

It’s important to note that InvisiTasking is far moreadvanced than any low priority I/O approaches thatdo “I/O throttling.” First off, InvisiTasking goesbeyond I/O to address all system resource usage.With Low Priority I/O approaches, there can still besome contention for resources at the disk and itdoes nothing to address other system resources. Itapplies a pro-active (rather than re-active) approachdesigned to truly deliver background operation.

InvisiTasking is essentially a resource delegationframework allowing the OS to operate at a higherefficiency. InvisiTasking achieves across-the-board

compatibility by allowing applications and servicesto operate under an additional layer of resourceallocation. When operating in the InvisiTaskingframework, even I/O intensive processes are ableto achieve transparency.

Diskeeper 2007 with InvisiTasking—Truly AutomaticDiskeeper 2007 is designed to go to work on thefly in real-time—when needed. Since it runstransparently with no intrusion on systemresources, no scheduling is needed by IT staff.Defragmentation begins almost immediately. Asautomatic as the sun rising and setting, Diskeeperkeeps systems running at optimum speed andreliability at all times. The result? Less downtime,less work and trouble for IT staff and boosted userproductivity. That is why maximum benefit to youcomes from deploying Diskeeper on everysystem you manage.

You may be skeptical at first that InvisiTasking hasvirtually no impact on system overhead. For thisreason, you can schedule times when Diskeeper isprevented from running. Eventually, we’re sureyou’ll be convinced and this type of lock-outscheduling will be forgotten. The scheduling era isover and the era of truly automatic, invisibledefragmentation has begun.

Someday in the future, could all systemmaintenance activities be done in real-time asneeded, even on critical servers with round-theclock uptime? With InvisiTasking, we believe so.Such a paradigm shift would mark the end ofscheduling and scripting maintenance tasks andallow for truly automatic processing.

To find out more about InvisiTaskingand Diskeeper 2007, contact yourSales Representative at:800-829-6468 code 9312

The Diskeeper 2007 new user interface includes the Idle Resources graph which shows in real time theamount of idle resources being used by Diskeeper processes.

© 2006 Diskeeper Corporation. All Rights Reserved. Diskeeper, “Set It and Forget It”, InvisiTasking, and the Diskeeper Corporation logo are registered trademarks of Diskeeper Corporation in the United States and/or othercountries. Windows is a trademark or registered trademark of the Microsoft Corporation in the United States and/or other countries. All other trademarks are the property of their respective owners. www.diskeeper.com

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