1. High Performance Storage Solutions April 2010 Larry Jones VP, Product Marketing

2. Slide 2 Panasas, Inc. Panasas Business Update The momentum continues: Q1 revenue up 46% YoY Panasas placed in Visionary quadrant by Gartner in High End NAS MQ Two new product platforms by mid-year LANL and Sandia choose Panasas for 12PB Cielo system Revenue Growth – 2009 vs. 2008 -10-12% +25% WW Storage Industry Panasas

3. Slide 3 Panasas, Inc. The Market - Scale-Out NAS Enterprise NAS Business Applications ERP Finance CRM Email Other mission critical HPC Risk Modeling CFD Simulation Seismic Processing High Energy Physics EDA OPC Visual Effects rendering Genome sequencing Technical Applications Trading algorithm design CAE Design Computing Geo Interpretation Visualization RTL Design Computing Model, texture creation Drug Discovery Genome archives Media multi-format archives SW Development Home directories Technical Enterprise Panasas solves the most difficult storage problems with high reliability in an easy to use appliance-like solution

4. Slide 4 Panasas, Inc. Technical Enterprise Storage Problem High Throughput Sequential I/O Supercomputing HPC Linux Cluster High IOPs Random I/O Technical Apps Linux/Windows/Unix Low $/GB Massive Archive Archive Linux/Windows/Unix  Different applications and users across the workflow  Creates storage silos by application and by vendor  Costly and inefficient

5. Slide 5 Panasas, Inc. The Technical Enterprise Archive Linux/Windows/Unix PanFS Panasas Solution High Throughput Sequential I/O High IOPs Random I/O Low $/GB Massive Archive Supercomputing HPC Linux Cluster Technical Apps Linux/Windows/Unix  High performance scale-out NAS solutions  PanFS Storage Operating System delivers exceptional performance, scalability & manageability

6. Slide 6 Panasas, Inc. Panasas Storage Product Line Highest-End ActiveStor Mid-Range ActiveStor Entry Level ActiveStor 7 Series 8 Series 9 Series Availability / Management Performance / Scalability Single File System for Seamless Scalability

7. Slide 7 Panasas, Inc. Performance (IOPs) Capacity (TB) US List Price Isilon IQ5400S NTAP FAS3160 w/PAM Panasas PAS-9 46,63560,389 77,137 4856 80 $494K$490K $500K The Numbers Tell the Story More Performance and Capacity for the Same Price 28- 66% Faster 40-67% More Capacity

8. Slide 8 Panasas, Inc. Introducing PAS HC Capture and archive massive amounts of data for technical computing applications Provides the highest levels:  Performance  Scalability  Manageability Multi-Petabyte Scale-Out NAS Solution Under NDA Until 4/20/10

9. Slide 9 Panasas, Inc. PAS HC - Performance w/ High Density Footprint Performance  5 GB/s and 1 PB per rack – add racks for performance and/or scalability  New Intel ® Nehalem Microarchitecture  New 64 bit O/S  Faster memory, multi-core optimized  64 Gb/s Fibre Channel backend capacity Capacity Under NDA Until 4/20/10

10. Slide 10 Panasas, Inc.  High Density Packaging  120 TB per 4u shelf  Up To 960 TB per rack  PanFS Storage Operating System  Global namespace  Add capacity without disruption  Multi-petabyte scale  Massive single storage pools  Unlimited file system size  Up to 12,000 clients PAS HC – Massive Scalability Under NDA Until 4/20/10

11. Slide 11 Panasas, Inc. PAS HC - Manageability  Low TCO  Low price/GB/floor tile  Cost efficiency  Add capacity without disruption  High Availability  RAID 6 data protection  Redundant power & cooling  Automatic transparent failover & restoral  Ease of Administration  Single point of management  Self configuring – Installs in 15 minutes Under NDA Until 4/20/10

12. Slide 12 Panasas, Inc. Panasas Product Family Balanced Performance & Capacity PAS 8 Optimized for Highest Performance PAS 9 Entry-Level Performance & Capacity PAS 7  Introducing the PAS HC  Developed with/for largest Panasas customers High Capacity Archive PAS HC Under NDA Until 4/20/10

13. Slide 13 Panasas, Inc. The Panasas Difference  Patented file system  Global namespace  Infinite scale  Multi-protocol support  Parallel and direct access  pNFS open source standard  High reliability  Tiered parity data protection  Automatic load balancing PanFS Storage Operating System Workstations/PCs HPC Cluster NFS DirectFLOW CIFS /pNFS PanFS PAS 7/8 PAS 9 PAS HC

14. Thank You