FREMONT, CA — January 30, 2007 — Panasas, Inc., the leader in clustered storage solutions for the High Performance Computing (HPC) market, today announced the United States Patent and Trademark Office (USPTO) granted the company a new patent for technology advances that enable object storage systems to further increase data availability through an advanced file system check/recovery mechanism. Panasas was awarded U.S. Patent No. 7,155,464 for "recovering and checking large file systems in an object-based data storage system". The new patent provides users of Panasas ActiveScale Storage ClustersTM, which are based on a leading edge object-based parallel file system technology, increased reliability for petabyte-scale storage systems typically found in Linux HPC data center environments.

The Panasas ActiveScale parallel file system, PanFS, is a sophisticated, failover-duplexed and journaled file system designed to recover from even the most catastrophic failure modes. Traditional journaled file system checking methods, used by most other file systems, do not scale to meet the massive capacity and performance requirements in today’s demanding high performance data centers.

"This latest patent is further evidence of our object-based parallel file system technology advancements and our focus to provide unmatched performance and reliability in clustered storage," said Garth Gibson, chief technology officer at Panasas. "This patent addresses current and future versions of the Panasas ActiveScale Storage Cluster, providing additional data protection to our global government, academic and corporate customers."

This latest patent brings the total number of Panasas patents to nine with many other innovative parallel file system patents pending with the USPTO. Panasas expects to be granted numerous additional patents related to its storage technology over the next several years. Powered by the Panasas ActiveScale File SystemTM (PanFS), the Panasas ActiveScale Storage Cluster helps customers achieve maximum application performance while reducing total cost of ownership (TCO) by driving the cost and complexity out of deploying a next-generation storage infrastructure for the High Performance Data Center. The fully-parallel Panasas DirectFlowTM data path provides direct access between Linux cluster nodes and Panasas storage to eliminate the performance bottleneck caused by legacy storage systems.

About Panasas

Panasas, Inc., the global leader in parallel storage solutions, helps commercial, government and academic organizations accelerate their time to results leading to real world breakthroughs that improve people’s lives. Panasas’ high-performance storage systems enable customers to maximize the benefits of Linux clusters by eliminating the storage bottleneck created with legacy network storage technologies. Panasas ActiveStor Parallel Storage Clusters, in conjunction with the ActiveScale® Operating Environment and PanFS™ parallel file system, offer the most comprehensive portfolio of storage solutions for High Performance Computing (HPC) environments. Panasas is headquartered in Fremont, California. For more information, please visit www.panasas.com.

Panasas, ActiveScale, DirectFLOW and PanFS are trademarks or registered trademarks of Panasas, Inc. All other trademarks are the property of their respective owners.