2. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks Digitask Seminar April 2000 Digitask Consultants, Inc. Digitask@digitask.com

3. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) What Is A SAN ? What Is The Justification ? Why Is Fiber Recommended ? Why Is It Needed ?

4. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s)

5. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) SAN Consists Of Connections, Hardware & Software. Dedicated Entirely To Storage. Uses Fast Fibre Interconnect Technology.

6. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) Obvious Dramatically Better Results In Data Sharing, Consolidation, Accessibility Management, & Security Of Enterprise Resources. SANS Give Better Than 20% Average Increase In Storage Utilization Rate.

7. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) SANs Can Allow For A Better Than 50% Reduction In Tape Utilization. SAN’s Allow For A Major Increase In Storage Productivity. SAN’s Give Better Access To Remote Mirrors & On-line Backups.

8. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s)

9. Copyright ©2003 Digitask Consultants Inc., All rights reserved SAN Concepts Storage Array

10. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) Data Replication Manager (DRM) èAllows Real-time Copy Of Data On-line To Local Or Remote Locations èData Replication Performed At Controller Subsystem Level Without Affecting Host Activity. èDRM Works On Fibre Channel RA8000 and ESA12000.

11. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) Using Data Replication Manager èWhen The Cost Of Unavailable Systems & Data Loss Over Shadows The Cost Of Duplication Of Systems. èA Need To Recover From An Outage In A Very Short Time Exists. èBusiness Continuation Necessity. èEstimate Downtime Costs Between $15K To $6.5M Per Hour !

12. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s)

13. Copyright ©2003 Digitask Consultants Inc., All rights reserved Now, let’s talk about...

14. Copyright ©2003 Digitask Consultants Inc., All rights reserved Availability Classification Uptime Levels (%) Fault Tolerant99.9999< 1 minute Extremely High Availability 99.9995 minutes Fault Resilient Clusters99.9953 minutes with Failover High Availability99.98.8 hours Commercial Availability99.543.8 hours Annual Downtime How much availability do you really need? Sources: Gartner Group, Transaction Processing Performance Council, Compaq

15. Copyright ©2003 Digitask Consultants Inc., All rights reserved Source: Gartner Group and Contingency Planning Research FinancialBrokerage operations??????? $ 6,500,000 Average Cost per Hour of Downtime Industry Application FinancialCredit Card Sales??????? MediaPay Per View??????? RetailHome Shopping (TV)??????? RetailCatalog Sales??????? TransportationAirline Reservations??????? $ 2,600,000 $ 90,000 $ 150,000 $ 113,000 $ 89,500 Cost of Downtime

16. Copyright ©2003 Digitask Consultants Inc., All rights reserved Backup Issues u Backup becomes difficult because è Storage capacities are increasing faster than customers have planned. èOn-line applications require no “unavailability” time due to 24x7 operations èProduct costs are far less than management costs and “unavailability” costs èPerformance is hard to model because components work serially and the è solution is only as good as the slowest component èCustomers realize their “true risks & costs” only when a restoration is needed èNo tape standards exist and there is no single ISV that supports all operating systems

17. Copyright ©2003 Digitask Consultants Inc., All rights reserved Network Backup Direct Backup Drive or Library Many Drives or Libraries Traditional Backup Methods Benefits: Minimal Hardware/software Centralized Administration Broad Connectivity Drawbacks: Network can be very slow Benefits: High Performance Rates Drawbacks: Maximum Hardware/software No Centralized Administration No Broad Connectivity

18. Copyright ©2003 Digitask Consultants Inc., All rights reserved  Puts Tape storage on a high-speed, independent Fibre Channel (100MB/sec) dedicated data backbone  Leverages current high performance DLT and Library technology including scalable Compaq DLT Mini-Library model  Provides a centralized, automated backup solution for multiple servers  Offers greater performance with less hardware than traditional LAN-based data management  Eliminates data traffic associated with a network backup  Functions with standard backup software if needed Digitask’sAlternative Enterprise Backup Solution - Fibre Channel Backup & Restore

19. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (SAN’s) Data Replication Manager (DRM) Features èNo Single Point Of Failure (NSPOF). èHost Independent Copy Operation. èData Protection Over 10KM to 40KM. èFibre Channel Data Xfers At 100MB/sec. èSupports RAID Configurations (0,1,0+1,3/5). èBi-directional Remote Copy.

20. Copyright ©2003 Digitask Consultants Inc., All rights reserved Storage Area Networks (DRM)

21. Copyright ©2003 Digitask Consultants Inc., All rights reserved Multi-Site SAN With EBS & DRM

22. Copyright ©2003 Digitask Consultants Inc., All rights reserved SANworks Strategy Open SAN accessibility Storage virtualization –Enable flexible storage pooling for unprecedented scalability, granularity, availability, and serviceability Data protection and replication for fast recovery –Replace traditional backups with virtual snapshots and physical clones that can be recovered quickly –Make distance transparent to remote replication

23. Copyright ©2003 Digitask Consultants Inc., All rights reserved Enterprise Backup & Virtual Replicator (WNT & Win 2000)

24. Copyright ©2003 Digitask Consultants Inc., All rights reserved Next Step in the ENSA Evolution: Open SANs Homogeneous SANs Shipping Today The Next Step Heterogeneous SANs Open SANs

25. Copyright ©2003 Digitask Consultants Inc., All rights reserved Cluster Storage Server (Network Attached Storage)

26. Copyright ©2003 Digitask Consultants Inc., All rights reserved Wide Area Cluster Concepts Definition of Wide Area Cluster (WAC) >Some Nodes Separated from Others >Implies Separate Computer Facility >Distance Varies

27. Copyright ©2003 Digitask Consultants Inc., All rights reserved Types Of WAC Remote Cluster Node Multi-site Cluster Disaster Tolerant Cluster >Duplication Of Hardware

28. Copyright ©2003 Digitask Consultants Inc., All rights reserved Wide Area Cluster

29. Copyright ©2003 Digitask Consultants Inc., All rights reserved WAC Shadow Data Move

30. Copyright ©2003 Digitask Consultants Inc., All rights reserved Questions ????? Digitask Consultants 212-682-6652/WWW.DIGITASK.COM