1. Information Means The World.

2. Enhanced Data Recovery Agenda EDR defined Backup to Disk (DDT) Tape Emulation (Tape Virtualization) Point-in-time Copy Replication Based Backup

3. Information Means The World. Datalink Core Competency Matrix

4. Information Means The World. What is Enhanced Data Recovery? A backup and restore architecture that combines advanced software functionality with a disk based storage array to augment a traditional tape only solution. Enables the concept of “Backup to disk, archive to tape”.

5. Information Means The World. Yes 63.6% EDR Acceptance is Growing Q: Do you have plans to implement disk based data recovery? Source: Coughlin Associates

6. Information Means The World. Definitions Recovery Point –amount of time that has elapsed since the last known consistent copy of the data Recovery Time – amount of time required to gain access to the data Backup Window – amount of time available where production servers can be impacted by backup activity

7. Information Means The World. Business Drivers Growing storage capacities and rising downtime costs Pressure to reduce recovery time (RTO) Pressure to minimize data loss (RPO) Operations issues –Shrinking backup windows –Reliability issues in large environments Media costs & media management getting out of control We are seeing a dramatic rise in the cost and complexity of backup operations

8. Information Means The World. What’s wrong with traditional backups? Slow restore capabilities Reliability issues Shrinking backup windows Tape is a sequential access device –Data written in a linear fashion –Seek times to find data are very time consuming –Cartridge load times are high –Compression limited to linear algorithms

9. Information Means The World. Enhanced Data Recovery is the Solution Enabled by falling disk prices (ATA & SATA) Also enabled by mature, advanced software functionality Leverages performance, reliability, and random access nature of RAID Augments tape capabilities

10. Information Means The World. Backup to Disk

11. Information Means The World. Backup to Disk Recovery Point –Similar to enterprise backup to tape, however, improvement in reliability yields lower average recovery point. Recovery Time – Full restore similar to tape, however, significant improvement for single files Backup Window – Improvements in some scenarios, including situations where tape drives are not streamed, or when reliability problems cause frequent job restarts Backup to diskTape BackupBackup to disk(individualfile restore)Tape BackupBackup to disk(full restore)

12. Information Means The World. Backup to Disk Solution Benefits:Drawbacks: Fast file level restores – improved productivity and less downtime Improves backup reliability – less exposure to lost data and improved staff productivity Reduction in tape resources – lower tape media costs Disk medium supports simultaneous reads and writes enabling real time cloning and restores during backup Typically no compression capabilities Can be disruptive to backup operation No reduction in IP network traffic Minimal benefit for full restores Enterprise backup software support for disk evolving

13. Information Means The World. Tape Emulation

14. Information Means The World. Tape Emulation Tape BackupTape Emulation(individualfile restore)Tape BackupTape Emulation(full restore) Recovery Point – Similar to enterprise backup to tape, however, improvement in reliability yields lower average recover point. Recovery Time – Full restore similar to tape, however, significant improvement for single files Backup Window – Results will vary based upon environmental variables. In some cases, TE yields dramatic backup window benefits. In others, little to no benefit.

15. Information Means The World. Tape Emulation Solution Benefits:Drawbacks: Compression capabilities Non-disruptive to current policies and procedures – no impact on productivity and lower TCO Fast file level restores Minimized fragmentation and file system management Improves backup reliability I/O tuned for sequential large block transfer Enables reduction in tape resources – lower cost Can reduce backup time No reduction in IP network traffic Minimal benefit for full restores Proprietary layer of technology adds incremental cost and complexity

16. Information Means The World. Point-in-time Copy

17. Information Means The World. Point-in-time Copy Recovery Point – reduced by splitting mirrors or taking snapshots Recovery Time – Significantly reduced for full restore. Less convenient for file level restores, however. Backup Window – If used as a foundation for off-host backup, PIT copy can greatly reduce the impact on production, allowing for backup within tight window Tape Backup Point-in-time CopyPoint-in-time Copy

18. Information Means The World. Point-in-time Copy Solution Benefits:Drawbacks: Backup processing removed from production servers – less production impact improves TCO Backup impact reduced to minutes Fast full restores – improved productivity (RTO) Enables consolidation of backup resources – lower cost Improved recovery point capabilities – less data loss (RPO) May be disruptive to current backup policies and procedures May not reduce tape media or tape automation resources Integration effort can be somewhat complicated

19. Information Means The World. Replication Based Backup

20. Information Means The World. Replication Based Backup Recovery Point –Minimized for asynchronous replication, no lost data for synchronous replication Recovery Time – Short because of on-line copy which can be used for single file restore or used as the active file system Backup Window – Actual backup can be performed off-host, making backup window a moot concept Tape Backup Replication Based BUReplication Based BU

21. Information Means The World. Replication Based Backup Solution Benefits:Drawbacks: More frequent backups with more copies kept online – improved RPO Reduces tape media and automation resources – lower cost Simplifies media management Fast file & full restores Replication based backup reduces IP network traffic Shortest RPO & RTO when combined with snapshots Improved consistency and reduced risk through centralization of remote backup Good foundation for DR Disruptive to current backup policies and procedures Integration effort is somewhat complicated

22. Information Means The World. Summary Enhanced data recovery incorporating disk technology is now cost effective and drives measurable business value There are distinct architectural approaches to using disk for data recovery and it is critical to understand the relative strengths and weaknesses of each Disk based architectures are currently used to augment, not replace, tape infrastructure

23. Information Means The World. For more information contact: Paul Marrero, Account Executive Phone: 425.462.6617/Cell: 425.269.8693 pmarrero@datalink.com Scott Robinson, Chief Technology Officer Phone: 952.279.4824 srobinson@datalink.com