The Economics of Backup5 Ways Disk Backup with Deduplication Improves Backup Effectiveness, Cost-    Efficiency and Data P...
The Paradox of Growing StorageRequirements in a RecessionThe environment for all businesses has changed dramatically in th...
Top Data Protection ChallengesDealing with data growth, reducing backup and recovery times, and avoidingunacceptable level...
The downsides of failed backups and restores can affect virtually every person whoworks within an organization or who does...
1. Faster Backup TimesWhile tape backup systems have been in use for many years, the slow speed of tapebackup devices is a...
Post-process deduplication allows backup data to be written to disk without anyprocessing interfering with the backup flow...
2.  Improved Data Recovery Time (RTO)With tape-based data protection, the longest delays in recovering from a tape are oft...
3. Better, Faster Offsite Disaster RecoveryThe need for fast and simple restores to recover data during a site disaster is...
provides a number of benefits, including unified control and access of backup datastored on both local and remote ExaGrid ...
James Richmond, Network Administrator at               Niels Jensen, IT systems manager, at Fugro Data    Morningstar:    ...
Savings vs Disk-to-Disk-to-Tape (D2D2T)Beyond the time and cost savings described above, customers who have already putdis...
5. Reduce or Eliminate Failed BackupsOne of the most consistent challenges in backup operations is the prevalence of tapeb...
ConclusionIn these challenging economic times, every organization is looking to better leveragetheir resources. Disk backu...
Appendix: Total Cost of OwnershipFrameworkEven if your IT department is not constructing an ROI to justify an ExaGrid disk...
About ExaGrid ExaGrid offers the only disk-based backup appliance with data deduplication purpose- built for backup that l...
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The economics of backup 5 ways disk backup can help your business

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The economics of backup 5 ways disk backup can help your business

  1. 1. The Economics of Backup5 Ways Disk Backup with Deduplication Improves Backup Effectiveness, Cost- Efficiency and Data Protection 1
  2. 2. The Paradox of Growing StorageRequirements in a RecessionThe environment for all businesses has changed dramatically in the past two years.While many IT projects have been reduced along with budgets, the amount of data anorganization creates and must retain continues to grow.ESG and other analysts report data growth in the range of 30% per year. A recent studyby IDC forecasts that over the next decade, the number of files will grow by a factor of67, and storage capacity will grow by a factor of 30. IDC found that nearly 75% of data isa copy of other data. This growth creates the paradox of a higher burden placed on avulnerable point in the storage architecture—the backup system—in recessionary times.As data increases and more data resides on servers, executing successful dailybackups is becoming more difficult. For years, organizations have relied on tape as theprimary method of backing up critical data. However, managing tape and restoring datafrom it can be extremely cumbersome, unreliable, time-consuming, and even costly.Tape libraries, with their known reliability problems, have failed to keep up. Backuptimes that exceed the available window leave critical data unprotected, and manycompanies have yet to consider the ramifications of a failed restore until it was too late.For a significant portion of companies and organizations, risk of failure remains high.Those companies who have already moved to straight disk fronting a tape library arelimited by retention periods of typically 1-2 weeks, as the cost of disk becomesprohibitive for greater periods, and they still have the burden of managing offsite tape.IT professionals with responsibility for backup and recovery are looking to makeprocesses faster, more reliable, more automated, and less costly via the use of disk-to-disk-to-disk (D2D2D) or disk-to-disk-to-tape (D2D2T). The efficiencies of servervirtualization are also now driving a need to more efficiently backup redundant data fromthose virtualized servers. Using disk for backups is an excellent way to improveperformance and reliability and also reduce administrative time required to manage andmonitor backup and DR efforts for both physical and virtualized servers. But, for disk tobe practical, data deduplication is a necessary capability of a disk-to-disk solution.Despite the clear operational advantages of disk backup with deduplication, it requiresan investment whose payback is often difficult to quantify. This whitepaper summarizesthe business imperatives behind the need for disk backup with deduplication andidentifies and explains the five key ways disk backup can help your business: 1. Faster Backup Times 2. Improved Recovery Time (RTO) 3. Better, Faster Offsite Disaster Recovery 4. Reduced Time, Cost, and Complexity 5. Reduce or Eliminate Failed BackupsA framework for viewing total cost-of-ownership in your existing environment is alsopresented. 2
  3. 3. Top Data Protection ChallengesDealing with data growth, reducing backup and recovery times, and avoidingunacceptable levels of data loss or downtime are the three main data protectionchallenges for IT professionals who turn to ExaGrid, and these drivers are validated by aresults from recent ESG research. Which would you characterize as the primary challenge for your organization? (Percent of respondents, 100-999 employees, N=206, top 10 responses.Although the use of disk solves some of the challenges of data growth, in the absence ofdeduplication, the increased use of disk may increase spending on storage hardware asmore organizations seek to increase retention time of backup data on disk.Data loss occurs much more frequently than most people may realize. According tomany industry researchers, the odds are against you if you do not backup your datareliably every night: 3
  4. 4. The downsides of failed backups and restores can affect virtually every person whoworks within an organization or who does business with it. Users and customers arenegatively impacted, not to mention the IT department. In one highly-publicized incident, a 2007 data backup failure by the Alaska Department of Revenue wiped out data on a $38 billion account and cost the state $200,000 to restore the data. According to the National Computer Security Association, without adequate backup it takes 21 days and $19,000 to recreate 20MB of lost accounting data, and 42 days and $98,000 to recreate 20MB of lost engineering data. A 2010 IT survey by Veeam Software found that failed server recoveries cost the average enterprise more than $400,000 every year.Why Moving to Disk Backup WithDeduplication Makes Business SenseDisk backup with deduplication changes the economics of disk-based data protection.Most importantly, it makes the transition from tape- to disk-based protection affordableas it drives the total cost of ownership for disk-based backup closer to that of a tapestrategy.Backing up data to disk is far more efficient when zone-level data deduplicationtechnology is deployed, minimizing the amount of data to be stored. Zone-level data de-duplication stores only changes from backup to backup instead of storing full file copies.For example, if a full 10TB backup is performed over ten weeks, 100TB of data isbacked up. But, with a disk-based backup product with deduplication such as ExaGrid,the most recent full copy is stored and then only 200GB of byte-level changes are storedfor each previous backup, for about 1.8 TB of byte level changes. The total requires 6.8TB of compressed and data-reduced data, or about 1/15th of the original data that needsto be stored, saving not only disk space, but reducing the cost of long-term dataretention. Customers typically see storage efficiency gains ranging from 10:1 to 50:1.Backup and restore times are dramatically faster with disk vs tape. With duplicate dataremoved, companies seeking offsite disk-based DR do not need as much disk capacityat the remote site and the replication process does not require high-capacity networkbandwidth infrastructure. IT management time on backup is minimized, and operationalcosts for media, tape handling, tape library maintenance, storage and transportation aretypically eliminated. Disk also eliminates all of the reliability problems of tape that resultin failed backups and restores. 4
  5. 5. 1. Faster Backup TimesWhile tape backup systems have been in use for many years, the slow speed of tapebackup devices is a major reason many organizations have looked for a better, fasterway to back up their data. One of the key reasons many organizations move to a diskbackup solution is in fact the inherent advantage of disk for faster backups. ExaGridcustomers see on average 40-90% faster backups vs tape. Moving from tape to disk willget you faster backups, but it’s also important to choose the correct disk backupapproach and to ensure that you’ll continue to get faster backup times as your datagrows. Hitachi Consulting reduced nightly backup time 75% with ExaGrid, from 12 hours to 3 hours. They also saved thousands of dollars in license/maintenance fees vs tape and increased on-site retention to 30 days. “The ExaGrid system was much more cost-effective than the other solutions … ExaGrid’s customer support has been stellar. In fact, it’s been among the best support I’ve had from any vendor I’ve worked with and I would put them up against any other support organization in the industry.” Brad Leonard, Network Engineer, Hitachi ConsultingDisk vs. TapeWhile some would argue that some tape-based approaches might allow for a particularbackup job to move at rate on par with disk, the key advantage of disk-based backupover tape is the ability to run a large number of backup jobs in parallel. The number ofbackup jobs you can run via tape-based backup is only as high as the number of tapedrives in your tape library; at most four simultaneous backup jobs can target a four-drivetape library, for example. This limit is much higher with disk – a 50TB ExaGrid systemcan support up to 100 simultaneous backup jobs – and the ability to run this manybackup jobs in parallel will allow for much higher backup speeds with disk over tape.Post-Process vs. Inline DeduplicationOnce you have decided to move to a disk-based backup system, to achieve fastestbackup times, it is important to consider the various deduplication approaches availablewhen deciding which system to choose. This decision typically comes down to a choicebetween inline deduplication and post-process deduplication.With inline deduplication, backup data is sent to the disk backup system and isprocessed and deduplicated as the data comes into the system. Since all of the datacoming into the system is being deduplicated on the fly, this can slow the backup downsignificantly, potentially creating a bottleneck at the point of entry into the backupsystem. 5
  6. 6. Post-process deduplication allows backup data to be written to disk without anyprocessing interfering with the backup flow. A post-process system compresses anddeduplicates the data after the backup job has landed on the disk – not as the data iscoming into the system. This is the approach that the ExaGrid system uses. Sincenothing is done to the data as it comes into the ExaGrid system, the data can be writtenat the highest possible rate, giving you the smallest possible backup window.Planning for GrowthWhile it is desirable to strive for as short a backup window as possible today, it is alsoimportant to keep that backup window short over time as your data grows. After all,what good is a short backup window if it’s just going to get longer as your backup jobsget bigger?With some of the current appliance architectures, keeping the backup window shortwhile allowing for data growth means replacing your backup appliance with bigger andmore powerful models of that appliance. This occurs because many of these diskbackup systems use what is called a controller-disk shelf model, where all of theprocessing power, memory, and bandwidth are on a single controller system, andexpansion occurs by simply adding shelves of disk (with no incremental addition ofcontroller components) to the system. This is not the best solution, as eventually yourdata needs eventually outstrip the original controller component, and you end upmigrating to a system with a more powerful controller and start the process all overagain. The result is greater expense and greater management costs as you migrate yourdata to ever-larger appliances as your data needs grow.A better alternative is a grid-based system. With a grid-based system, each appliance inthe system brings with it not only additional disk, but also additional memory, bandwidth,and processing power – all the elements needed to maintain high backup performance.With ExaGrid’s grid-based disk backup system, keeping your backup window short asyour data grows is simply a matter of adding additional appliances to the grid. There isno need to replace less powerful appliances with more powerful ones – you simply addmore appliances to the grid as your needs require. You get the shortest possible backuptimes with the ability to easily keep those times short as your data grows over time.    6
  7. 7. 2.  Improved Data Recovery Time (RTO)With tape-based data protection, the longest delays in recovering from a tape are oftendue to the need to acquire, load, and restore data from the tapes containing the backedup data. However, tapes are often lost, misplaced, or are otherwise faulty – and thetime it takes to complete a restore or recovery operation increases considerably if one ormore of the backup tapes is found to be corrupted or damaged. When this occurs, olderbackup tapes must be used, resulting in a longer overall recovery process – and thedata finally restored to users and applications may be days or weeks old.Architected for Fast RestoresWhen a vendor designs its disk-based backup appliance, it’s important to realize thatrestores are extremely critical – especially restores that are a result of a major outage orinterruption in business operations. This was a major factor in ExaGrid’s implementationof post-process deduplication, where backups are landed on disk in their entirety beforethey are deduplicated. By keeping your most recent backup on disk and in its entirety,such an appliance allows the restoring of that most recent backup to happen withoutdelay. The data does not have to be pulled off of a tape, and it does not have to be putback together or “rehydrated” in order to be restored. This allows for extremely rapidrecovery and is in contrast to some of the other disk backup with data deduplicationsolutions out there, where data is deduplicated inline. With an inline architecture, datathat is backed up is deduplicated on the fly, before landing to disk, and you could wantthat backed-up data restored 30 seconds after your backup, but the dedupe effect wouldhave to be undone before you could access that data.Improved Recovery Time at Local and Remote SitesAs a result, any time you do a backup to the local disk backup appliance that uses post-process deduplication like ExaGrid, that most recent backup is retained in its entirety,ready to be rapidly restored when needed. In addition, in the case of a two-site system,the changes from backup to backup on a local site ExaGrid system are replicatedefficiently to an off-site system. In the event of a primary site disaster, it then takes just afew seconds to initiate a data recovery process at the second site using the existing diskbackup with data deduplication application. A recent survey of ExaGrid customers found96% recover files in under 30 minutes, and 86% recover files in under 15 minutes. Gardner Trucking experienced a database failure several days after replacing tape and deploying their ExaGrid System and recovered within hours. “The ExaGrid system offered significantly better price/performance than other solutions…and came in at approximately 25 percent the cost of competitive disk backup solutions…We estimate that we would have lost approximately $200,000 in business and productivity if we had to restore our database from tape. The ExaGrid system more than paid for itself in the first two days.” Gary Larson, CIO at Gardner Trucking 7
  8. 8. 3. Better, Faster Offsite Disaster RecoveryThe need for fast and simple restores to recover data during a site disaster is a businessimperative for many companies. As outlined in Section 2, tapes are often lost,misplaced, corrupted or damaged, and the time required to complete the overallrecovery process if backup tapes from offsite are used is lengthened considerably. Inaddition, the data finally restored may be as much as weeks old.Fast and Simple Disaster Recovery Using Disk Backup SystemWith a disk backup system with data deduplication, an optional offsite disk-basedbackup appliance can replace offsite tape and provide faster, more reliable datarecovery. The zone-level changes from backup to backup on a local site system arereplicated efficiently to an off-site system. Since it is only these zone-level changes thatare replicated, typically only about 2% of the backup traverses the WAN. In the event ofa primary site disaster, it takes just a few seconds to initiate a data recovery process atthe second site using the existing backup application.In addition to facilitating the replacement of offsite tape, certain disk backup with datadeduplication systems (such as ExaGrid) also provide proprietary “instant DR”technology for even faster recovery from an outage or disaster. With “instant DR,” whena new backup at the primary site is replicated to the remote site by sending over just thebytes that have changed, the remote site takes these changed bytes and combinesthem with previous backups to create a complete copy of the most recent backup on theremote site. Keeping this most recent backup intact and ready to be restored makesdisaster recoveries much faster, giving the customer “instant DR” should the need arise. Central Minnesota Credit Union reduced backup times from 13 hours with tape to 90 minutes with the ExaGrid, and has ExaGrid systems installed at their main datacenter and a remote site. “It’s amazing how fast our backups are now, and restores are quick too. With tape, we had to request tapes from offsite storage and then go through the whole process of restoring data. With the ExaGrid, we can restore information with the touch of a button. We also found that we could have our two locations managed by a single interface with error reporting and all the other bells and whistles we were looking for.” Mike Hinnenkamp, network administrator at CMCUExaGrid continues to stay on the cutting edge of offsite disk-based data protectionthrough the support of technologies such as Symantec OpenStorage API and Veeam’sInstant VM Restore. Using ExaGrid disk-based backup with Symantec OpenStorage API 8
  9. 9. provides a number of benefits, including unified control and access of backup datastored on both local and remote ExaGrid systems, varied amounts of retention for on-site versus off-site systems, simplified disaster recovery, and shorter backup windows.ExaGrid’s support for the Veeam Instant Restore feature set means the backup data canbe leveraged in new ways as it is live on the network. Because ExaGrid is a post-processing architecture that deliberately maintains intact copies of most recent backups,with ExaGrid’s disk backup and Veeam’s Instant Restore, customers can initialize a VMright off of the ExaGrid using Veeam. This allows ExaGrid to provide “primary storagelike” performance during the recovery. Competitive solutions that keep only thededuplicated copies of this data will perform poorly (or not support the feature at all).4. Reduced Time, Cost, and ComplexityExaGrid’s disk-based backup appliance saves a significant amount of IT staff time forusers. Gone are the days of fighting with the tape library over jammed tapes, mediaerrors, and slow backups. And by reducing or eliminating the use of tape in yourenvironment, you can reduce costs.Many IT professionals spend unnecessary time managing backups that are often not thesafety net they’re in theory supposed to be. Lengthy backup windows, unreliable tape,questionable restores (you don’t really know if the data is there until you try to retrieveit), and failed backup jobs all contribute to IT inefficiency and lack of backup integrity.Dealing with tape is cumbersome and inefficient, taking valuable IT time that could betterbe spent on other work. Add to the inefficiency the costs of maintaining a tape library,the cost of tape, of offsite storage, retrieval costs, and more and for some companiesthis spend is very high indeed.Saving Time and Costs vs TapeCompanies that switch from tape to a disk-based system report saving time, valuableresources, and money. ESG (2010 Data Protection Market Trends) reported that staffcosts represent nearly 30% of the data protection budget. And for some, meetingcompliance mandates is a business imperative not easily met with tape-based systems.The whole point of backup is to perform restores, so there’s no doubt that it’s a criticalfunction in the IT space. Given this criticality, it would seem to make more sense toinvest less time and money in a system that will restore versus investing more time andmoney in a system that may restore.The voices that best articulate the value of an ExaGrid system belong to current ExaGridcustomers, as captured on the following page. 9
  10. 10. James Richmond, Network Administrator at Niels Jensen, IT systems manager, at Fugro Data Morningstar: Systems “It got to the point where I spent the majority of “ExaGrid’s technology has exceeded our business my day managing backups… I used to worry needs and expectations. As such, it has delivered each night about backup jobs failing, especially outstanding value. Furthermore, from an over the weekend. The ExaGrid system has taken operational point of view, the time savings are a all of the worry and hassle out of our backups and huge hidden benefit. My team can deliver almost it frees me up to do other things. The ExaGrid instant restores to people throughout the business was also more cost-effective than the other - thus enabling them to deliver a better service to solution evaluated.” Fugro customers. It also frees my team to focus on other projects.” Brice White, Director of IT at Strategic Hotels and Raquel Solomon, Network and Computer Support Resorts: Specialist at City of Rancho Mirage: “Strategic Hotels & Resorts had been backing up “Before we deployed the ExaGrid system, to a cloud provider for the past eight years. We restores were a nightmare. We used to have to go looked at a couple of products….On a dollar-for- through lots of disks or tapes to locate the correct dollar basis, it was no contest. Strategic’s backup information and it took a considerable amount of costs were averaging $12,000 to $14,000 and up time. It’s so easy to restore data from the per month. The ROI with the ExaGrid was about ExaGrid.The information is all in one place and three months. We’re saving over $150,000 per the actual restore process takes no time at all…” year.” Dave Treamer, Sr. Associate Storage Architect Jason Ostrowski, Manager of IT at NPS Clifton Gunderson: Pharmaceuticals: “We were being charged $220 per hour to have “Installing the ExaGrid system has saved NPS someone at our co-location facility work on our nearly $1,500 per month in tape costs and tape tape library. We had them swap tapes and usually storage fees, but the biggest cost savings is in the called in three to four restore requests per day. It amount of time the IT staff saves in managing and got expensive and it was time consuming. With administering tape backups and restores, and in the ExaGrid, we’ve been able to reduce those meeting SOX compliance.” costs considerably and our restores take no time at all. Our users are thrilled with how fast we can complete their restore requests…” Network Administrator, U.S. Government Agency: Glenn Requierme, CIO at Vista Healthcare: “The ROI we receive on purchasing this product “The other area where the ExaGrid has made a has been unreal. It has reduced certain spending big impact in is with restores. Restoring data from budget caps and allowed for future growth.” tape was a challenge because it was very labor. intensive and took forever. With the ExaGrid, restores take no time at all.” 10
  11. 11. Savings vs Disk-to-Disk-to-Tape (D2D2T)Beyond the time and cost savings described above, customers who have already putdisk behind the backup server to reduce backup windows also realize savings in the costof disk by moving backup from straight disk to disk backup with deduplication.The approach of putting disk behind the backup server does solve the backup windowproblem; however, with D2D2T it is only cost-effective to keep one to two weeks ofbackups on disk. You still have to make tapes on-site to have retention of more than twoweeks. This problem is solved by using a disk-based backup system with datadeduplication. Not only does the cost prove more advantageous, but you can also keep8, 10, 12 or even more weeks of retention. If you have 10TB of primary data to bebacked up and you pay $900 per TB for cheap SATA with two weeks of retention, a diskbackup system with data deduplication can typically match the price. If you pay $3,000per TB for SAN storage, an ExaGrid disk backup with deduplication is typically lessexpensive. A disk-based backup system with data deduplication from ExaGrid will costless and will hold up to 16 weeks of retention, eliminating both the disk staging andonsite tape copies. The City of Miami Beach was backing up using a combination of disk and tape but turned to ExaGrid to reduce the costs of backing up to their SAN. The IT department has differentiated retention policies for the wide array of data it protects. Since installing the ExaGrid system, they have fine tuned the policies and moved much of the data the City had been backing up to expensive SAN disk to the ExaGrid system. “The ExaGrid system has given us the ability to recover and redeploy disk that we had been using for backups, and it has enabled us to get more data off SAN disk and tape and onto other types of disk. That’s just better for us all around…We’re now able to more comfortably back up our data within our backup windows because we’re going to the ExaGrid instead of a combination of disk and tape. We have fewer failures and we no longer exceed our backup window. Also, restores are much easier with the ExaGrid system. It saves us a lot of time, and it’s much more efficient.” Chris Hipskind, Senior Systems Administrator at City of Miami BeachSavings in Strategic IT InitiativesIt is well-known that despite the efficiency gains of server virtualization, virtual machinedisk (VMDK) images contain highly redundant data. This increases required storagecapacity. Disk backup with deduplication optimizes your virtualized serverimplementations by eliminating the duplicate data and reducing storage capacity needsby as much as 1000:1. Disk backup with data deduplication can also save costs in ITinitiatives such as data center consolidation, where deduplication reduces the amount ofstorage capacity needed to support backup and disaster recovery. 11
  12. 12. 5. Reduce or Eliminate Failed BackupsOne of the most consistent challenges in backup operations is the prevalence of tapebackup failure. Estimates show that 15% to 30% of backups to tape-based media failwhile 30% or more of restores from tape fail.The percentage is significantly higher if you broaden the definition of a backup failure.While most people do not count a backup job that exceeds your backup window as afailure, there is a pretty good argument that it is indeed a failure. Many organizationshave strict policies that backups cannot run after a certain hour and therefore any thatare still running are shut off. Even if you can allow them to keep running into thebusiness day, no one would advocate that you can sustain that mode of operation, so“failure” is the right label.Eliminate Tape Failures Without Throwing Your Library Out The WindowBecause tape itself is at the heart of a lot of the failures organizations experience, it’shard to see a better future without taking tape out of the equation. However, there arethings that can be done to eliminate some of the failures associated with tape withoutthrowing your library out the window: • Clean the tape drives at least as often as the vendor recommends. Like oil changes, these guidelines represent a minimum amount of care required to keep things running. • Though costly, perform all required maintenance on the drives and library. Tape systems are highly mechanical and require diligent attention to avoid catastrophic failure. • Bite the bullet and pay for the vendor technician to replace worn parts. • When it’s done, it’s done. When the tape library just isn’t what it used to be, it’s time to replace it.With the advent of lower cost disk technologies combined with data deduplication, youmay find that some vendors (though not all) offer disk-based backup appliances that arecost competitive with a tape library replacement. At ExaGrid, we have made it ourmission to rival tape library costs with our disk backup appliances.Enter disk, exit the issues of tape and the associated backup failures. This includes the“failures” where the backups jobs are simply not finishing during the window. Becausedisk backup is faster than tape and supports greater concurrency, you will not onlyeliminate media errors, jammed tape drives, and so on, you will see faster backups. David Dunbar, CIO at Meridian Title Corporation: “With the ExaGrid disk backup solution, it really is truly a ‘set it and forget it’ system. We’ve installed it. We’ve had successful backups since day one and haven’t looked back since. And even more important than the successful backups is that we’ve restored several times since adding ExaGrid and restores have been a matter of minutes where literally it was hours before.” 12
  13. 13. ConclusionIn these challenging economic times, every organization is looking to better leveragetheir resources. Disk backup with deduplication delivers the most value in the backup ordata center infrastructure level and can deliver significant financial, operational andbusiness impact. Gains are realized by significantly reducing the footprint of backup dataon disk and over network bandwidth. Even greater operational benefits are seen inreducing backup windows, ensuring the integrity of data backed-up, and eliminating thetime spent by IT solving backup problems and managing tape so staff can allocate timeto higher priority initiatives and increase their overall productivity. Faster recovery timeafter a failure can avert costs to the business of up to hundreds of thousands of dollarswithin days of the failure. The costs associated with running backups with tape librariesare budgeted, so now IT management has the opportunity to redeploy those dollars andresources to greater effect.All evidence continues to point to accelerated data growth and a greater need forfast, reliable backup systems despite an uncertain economic climate. Though thesituation appears complex, the facts reveal a relatively simple but powerfulsolution is at the ready: dollars and time currently consumed by existing tapelibraries or straight disk with limited retention can be far better utilized by moving to fast,reliable, highly scalable disk backup with data deduplication. 13
  14. 14. Appendix: Total Cost of OwnershipFrameworkEven if your IT department is not constructing an ROI to justify an ExaGrid disk backupwith deduplication system vs tape, many organizations find it helpful to assess thecurrent costs of their existing backup infrastructure. This spreadsheet, available inMicrosoft ® Excel from ExaGrid may be a useful tool for your analysis. Tape Based Traditional BackupSolution Basis Growth Current Year 2 Year 3 Total Rate Year Backup Hardware Current Tape Library Costs  $   %   $    $    $    $   Current Tape Library Maintenance  $   %   $    $    $    $   Tape Upgrade Hardware  $   %   $    $    $    $   Tape Upgrade Hardware Maintenance  $   %   $    $    $    $   Tape Media Cost (include annual refresh)  $   %   $    $    $    $   Professional Services Costs for Upgrades  $   %   $    $    $    $   Current Media Servers  $   %   $    $    $    $   Media Servers Growth or Upgrades  $   %   $    $    $    $   Media Server Maintenance  $   %   $    $    $    $   Backup Software Software Maintenance  $   %   $    $    $    $   Software Upgrade (growth)  $   %   $    $    $    $   Virtualized Server Backup Costs (if applicable) Virtual-specific Backup Software Maintenance    %   $    $    $    $   Virtual-specific Software Upgrade (growth)    %   $    $    $    $   Enterprise Backup VMWare Add-On  $   %   $    $    $    $   VMware Add-On Maintenance  $   %   $    $    $    $   VCB Proxy Server  $   %   $    $    $    $   VCB Proxy Server Maintenance  $   %   $    $    $    $   Offsite Tape Transportation  $   %   $    $    $    $   Tape Storage  $   %   $    $    $    $   Replication Bandwidth (if applicable)  $  %    $    $    $    $   Labor/Staffing and "Soft" Costs Weighted cost FTE (to manage tape backups  $   %   $    $    $    $   Impact of current time to recover files when deletion/failure  $   %   $    $    $    $                     Total        $   $   $   $  14
  15. 15. About ExaGrid ExaGrid offers the only disk-based backup appliance with data deduplication purpose- built for backup that leverages a unique architecture optimized for performance, scalability and price. The product was named “Product of the Year” for Backup and Recovery Hardware in 2010 by Storage magazine-SearchStorage.com and the company was named to the Wall Street Journal’s 2011 list of “50 Top Venture-Backed Companies.” ExaGrid’s unique combination of post-process deduplication, most recent backup cache, and GRID scalability enables IT departments to achieve the shortest backup window and the fastest, most reliable restores, tape copy, and disaster recovery without performance degradation or forklift upgrades as data grows. With offices and distribution worldwide, ExaGrid has more than 3,200 systems installed and more than 200 published customer success stories and testimonial videos available at www.exagrid.com.ExaGrid Systems, Inc | 2000 West Park Drive | Westborough, MA 01581 | 1-800-868-6985 | www.exagrid.com© 2011 ExaGrid Systems, Inc. All rights reserved.ExaGrid is a registered trademark of ExaGrid Systems, Inc. 15

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