1. 1 © 2008 DataCore Software Corp. — All rights reserved © 2008 DataCore Software Corp Virtual Disks in a Mechanical World Made fast, reliable, flexible & cost-effective by software

2. 2 © 2008 DataCore Software Corp. — All rights reserved 2 Are Your Disks Hurting?  Age quickly  Fail catastrophically  Never fast enough  Constantly out of space  Painful to restore  Costly to upgrade  Agonizing to migrate

3. 3 © 2008 DataCore Software Corp. — All rights reserved 3 Work-Arounds  Excess capacity  RAID sets  Front-end controllers  Caches  Online diagnostics  Frequent backups  Off-site copies ―Narrow Scope ―Manufacturer, Model# and O.S. Dependent Expensive, Time Consuming & Much Throw-away

4. 4 © 2008 DataCore Software Corp. — All rights reserved 4 Load Balancing Centralized Management High-speed Caching Remote Replication Thin Provisioning Virtual Disk Pooling RAID Striping Manufacturer-Independent SAN-wide Features Synch Mirroring (High-Availability) Online Snapshots Virtual Disk Migration Continuous Data Protection & Recovery

5. 5 © 2008 DataCore Software Corp. — All rights reserved 5 Not-so-perfect disk drives behave “Ideally”  Fast  Reliable  Shareable  Easy to back up, maintain & upgrade  Never grow old “Virtual” Disks

6. 6 © 2008 DataCore Software Corp. — All rights reserved 6 Two Software Products to Choose From  Pools up to 32 TBs  Runs on single server or highly-available server pair  Can run in a Virtual Machine SANmelody ™ SANsymphony ™ For a typical iSCSI or Fibre Channel SAN: For Larger SANs:  Scales indefinitely across multiple tiers of devices, including high-end storage systems  N+1 redundant  Superset of advanced services

7. 7 © 2008 DataCore Software Corp. — All rights reserved 7 Windows, Unix, Linux, NetWare, MacOs, Virtual Machines & Hypervisors IDE,SCSI, SATA, SAS,FC, iSCSI, etc. Hardware Flexibility & Future-proofing Software Adapts to Change! Perpetually Yields Better Performance & Value SAN Windows servers in specialized role iSCSI/Ethernet or Fibre Channel

8. 8 © 2008 DataCore Software Corp. — All rights reserved 8 Sampling of Customers

9. 9 © 2008 DataCore Software Corp. — All rights reserved 9 Case In Point Customer Challenge: $200,000 budgeted for virtual infrastructure. Surprised to learn that SAN alone cost over $190K Solution: Business Continuity within budget using DataCore  300 Users  SQL Server, Exchange  40 App Servers  Windows VMs  10TB Police Station Co-location 10 Miles

10. 10 © 2008 DataCore Software Corp. — All rights reserved 10 Desktop, App, Server & Storage Virtualization

11. 11 © 2008 DataCore Software Corp. — All rights reserved 11 Before Server Virtualization: Physical Isolation ~30 Users ~35 Users ~20 Users ~30 Users ~15 Users  Few people depend on each physical resource  Hardware changes more confined

12. 12 © 2008 DataCore Software Corp. — All rights reserved 12 5X More Users After: Concentrated Workloads Physical Server Virtual Machines

13. 13 © 2008 DataCore Software Corp. — All rights reserved 13 5X More Workload Result: Pronounced Dependency on Storage Magnifies impact of:  I/O Bottlenecks  Interruptions Physical Server Virtual Machines Shared Resources

14. 14 © 2008 DataCore Software Corp. — All rights reserved 14 Take Advantage of Newly Freed Resources Virtual Server Pool Virtual SAN Main Computer Site Disaster Recovery Site Virtual Disk Pool

15. 15 © 2008 DataCore Software Corp. — All rights reserved 15 High Availability & Disaster Recovery Made Practical Known-good copy Virtual Server Pool Virtual SAN Main Computer Site Disaster Recovery Site Virtual Disk Pool Auto Failover & Failback Auto Replicate

16. 16 © 2008 DataCore Software Corp. — All rights reserved 16 Fully Redundant & Remotely Replicated Profile 1000+ Users 130+ App Servers SQL, Oracle, Office ESX, Linux Microsoft Cluster 125TB Pool 4 EMC CX Arrays 2 EMC DMX Arrays Customer Challenge Business Continuity for regulatory compliance & data retention

17. 17 © 2008 DataCore Software Corp. — All rights reserved 17 Clusters Spread Across Two Campuses Profile 1000+ Users 100+ App Servers Oracle, SQL, PACS, Office ESX, Linux Microsoft Cluster 138TB Pool IBM FasT Arrays Customer Challenge Eliminate storage-related interruptions despite 100% annual capacity growth

18. 18 © 2008 DataCore Software Corp. — All rights reserved 18 Get the Most From Your Storage Fullest Utilization Fullest Utilization Highest Availability Highest Availability Fastest Performance Fastest Performance

19. 19 © 2008 DataCore Software Corp. — All rights reserved 19 Call on Us When … Virtualizing Servers & Desktops Can’t tolerate shared storage failures Poor performance from I/O bottlenecks Upgrading Storage Running out of disk space Must migrate to new equipment & SANs Shaping Business Continuity Plan Concerned about downtime & disasters Anxious to protect online assets

20. 20 © 2008 DataCore Software Corp. — All rights reserved 20 Questions ?????

21. 21 © 2008 DataCore Software Corp. — All rights reserved 21 Thank You … www.datacore.com

22. 22 © 2008 DataCore Software Corp. — All rights reserved 22 Virtual Disk Pooling  Create virtual disks of desired sizes  Expand capacity without downtime  Add different types of disks even from different vendors  Use what you paid for SANsymphony SANmelody Consolidate like or unlike disk resources ≤32 TB >> Petabytes

23. 23 © 2008 DataCore Software Corp. — All rights reserved 23 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 blocks to be read & groups writes to avoid waiting on disks SANsymphony SANmelody Speeds up performance

24. 24 © 2008 DataCore Software Corp. — All rights reserved 24 Load Balancing  Overcome typical storage- related bottlenecks  Spread load on physical devices using different channels for different virtual disks  Automatically bypasses failed or offline channels SANsymphony SANmelody Improve response and throughput

25. 25 © 2008 DataCore Software Corp. — All rights reserved 25 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 SANsymphony Just enough space, just-in-time SANmelody

26. 26 © 2008 DataCore Software Corp. — All rights reserved 26 RAID Striping  Circumvents drive failures  Spreads I/O across multiple spindles  Offloads RAID 0 & 1  Supports popular RAID devices in pool SANsymphony SANmelody Better protection & performance

27. 27 © 2008 DataCore Software Corp. — All rights reserved 27 Synchronous Mirroring SANsymphony Real-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 independent copies simultaneously SANmelody N+1 Redundancy

28. 28 © 2008 DataCore Software Corp. — All rights reserved 28 Virtual Disk Migration SANsymphony Transparently move contents from one disk to another  Allows non-disruptive hardware disk upgrades for mirrored volumes  Clears & reclaims space occupied by original SANmelody

29. 29 © 2008 DataCore Software Corp. — All rights reserved 29 Online Snapshots  Recover quickly at disk speeds to known good state  Eliminate back-up window  Provide “live” environment for analysis, development & testing SANsymphony SANmelody Capture Point-in-time Images

30. 30 © 2008 DataCore Software Corp. — All rights reserved 30 Continuous Data Protection & Recovery  Dial back to restore an arbitrary point in time  Logs and timestamps all I/Os  No need to quiesce or interrupt applications SANsymphony SANmelody Return to any point-in-time without taking explicit backups

31. 31 © 2008 DataCore Software Corp. — All rights reserved 31 Remote Replication  Perfect for disaster recovery or business continuity  Only needs a basic IP connection to secondary site  Bi-directional SANsymphony SANmelody Keep distant copies without impacting local performance 1-to-Many Many-to-1

32. 32 © 2008 DataCore Software Corp. — All rights reserved 32 SAN-wide Centralized Management  Automates laborious, repetitive tasks  Intuitive to operate  Universal tools work across like or unlike devices SANsymphony SANmelody Control and monitor all SAN resources from one console 2 Nodes SAN-wide

33. 33 © 2008 DataCore Software Corp. — All rights reserved 33 Analysis & Reporting  Reveals SAN resource consumption & performance trends  Assists with capacity planning, utilization & quality of service decisions  Export results to 3 rd party tools for further analysis, charge-back & billing SANsymphony Tracks & charts long-term SAN behavior SANmelody