Compellent Company and Product Overview

1. Compellent Company and Product Overview Why Compellent?

2. Compellent World’s fastest growing storage company NYSE:CML Award-winning technology SAN of the Year Quality Award Winner Lowest TCO in the industry Worldwide installs across all industries 98% customer satisfaction ratings Redefining the impact of data storage with enterprises around the world Key Technology Partners FBI

3. Our Customers are Passionate SAN Market Window of Customer Ratings

4. Compellent Storage Center Scalable Enterprise-class SAN with the lowest TCO in the industry • Reduce CAPEX by over 74% • Automated Tiered Storage • Thin provisioning • Cut OPEX in half • Less administration: no training required • Reduced bandwidth, power, cooling, rackspace • Ensure continuous data availability • Unlimited snapshots without full copies • Replication flexibility for low-cost DR • Supports any open-systems server without agents • Connect via FC, iSCSI or both • File access via NFS, CIFS or both • Scale from 1TB to over 700 TB • OS Support: Windows, Solaris, HP-UX, Linux, AIX, Netware, Mac OS X, Tru64, Open VMS, VMware • Investment Protection • Seamless growth: no more forklift upgrades

5. Hardware Overview Server and disk drive technology independence — Mix and match any combination • Storage Center Controllers • Standards-based hardware • Server and disk connections via PCI cards • Controller clustering for high availability • “Shared nothing” approach • High-speed mirrored, write-back cache • Storage Center Disk Enclosures • Scale from 1TB to over 700TB • Expand storage online • FC switched disk enclosures (SBOD) • Drives supported: FC – 10K, 15K • SSD – STEC Zeus IOPS • SATA/SAS disk enclosures

6. The Compellent Advantage: Dynamic Block Architecture The only storage solution that manages data inside the volume Dynamic Block Architecture • Metadata • Creation, Access, and Modification time • Frequency of access • Disk drive type/RAID level • Sophisticated data movement engine • No performance impact • U.S. Patents issued Traditional SANs Compellent 72°F 72°F 70°F 68°F

7. Reduced System Complexity Block-level virtualization improves asset utilization and performance Compellent Advantage Virtualization Benefits • Optimized data placement • All volumes span all drives • Higher performance • Change RAID levels anytime • No performance tuning • Simplified capacity planning

8. Enabling Efficient Storage Utilization Eliminate the need for provisioning empty space Thin Provisioning Benefits Dynamic Capacity Advantage • Only consume capacity when data is written • Reduce disk drive, space, power and cooling costs • Instant volume creation • Automatic growth with applications • Performance gains • Thin Import for immediate savings Traditional Thin Provisioning • Much larger chunks • Pre-allocation required • Snapshots not thin provisioned • Windows–unrecoverable space • “Fat” data migrations • Limitations on application usage

9. Automated Management of Inactive Data The ONLY SAN to automate ILM inside the volume Benefits Data Progression Advantage • Patented technology automatically moves inactive data to lower tiers • Eliminates RAID 5 write penalty • 74% less disk costs • Reduced power, cooling and floorspace • Automatically move snapshots to lower tiers • No server side agents required Traditional Approach to Tiered Storage • Entire Volume movement ONLY • Manual data classification • Manual data movement • Extra software on each server

10. Optimize Data Placement Reduces the number of drives while maintaining performance Fast Track Data Placement Fast Track Benefits Minimize Seek Time Data on the Fast Track • Operates inside the volume at the block-level • Use up to 30% fewer drives • Reduce the need for costly, high-power drives • Improve disk utilization • Optimize performance on actual usage patterns • Significantly lower latency on read/write operations Traditional Data Placement • Volume-level placement • Active data distributed across the drives • Allocated but empty space on outer tracks • Wasted inner tracks on the drive

11. Rapid Data Recovery Industry’s most advanced snapshots reduce downtime and save time Data Instant Replay Benefits Data Instant Replay Advantage • Readable and writeable instantly • Space efficient – freeze pointers • No space pre-allocation • Integration with common applications • Reduce dependence on tape • Patented technology • Single Mailbox Recovery Compellent Approach 8:00 8:15 8:30 8:45

12. Simplified, Low-cost Disaster Recovery San Diego Las Vegas London Thin Provisioned Volume Replay Schedule Live testing anytime, fast recovery minimizes outage time Thin Replication Benefits Remote Instant Replay Advantage • Anytime DR validation • Significant reduction in bandwidth and management costs • No space pre-allocation • Integrated IP & FC – No extra hardware to buy • Replication in 6 clicks • One button, automated restore • Patented technology

13. Storage Management Multi-System Management Discovery Capacity Management Performance Management Reporting and Data Export Replication Management Event Management Benefits Simplifies Storage Administration Streamlines Disaster Recovery Centralized Monitoring and Management Single Pane of Glass Enterprise Manager San Diego London Las Vegas

14. Boot From SAN Diskless servers Thin provisioned boot volumes Less power, cooling and floorspace “Spawning” of boot images Replace failed servers in less than 15 minutes Easy to replicate boot images for DR Lower server costs by more than $100,000 for every 25 servers The Complete Boot From SAN Solution Boot from SAN Benefits

15. Support Services Copilot engineers available 24x7x365 @ headquarters Immediate response – No “2 hour call-back” policy H/W & S/W maintenance Phone-home monitoring Predictive & proactive Professional Services High customer satisfaction 98% satisfaction rating 100% would buy again 2008 Quality Award Winner “Top-Rated SAN” “The most knowledgeable support staff belongs to Compellent.” Storage Magazine, April 2008 Compellent Copilot Services World-class service delivered by Compellent from the USA Proof Points Service and Support Benefits Compellent Ranked No. 1 in Technical Support