Egenera Granted Patent for Processing Area Network

MARLBORO, MA--(Marketwire - July 31, 2007) - Egenera Inc., the data center virtualization company, today announced that the U.S. Patent and Trademark Office has issued U.S. Patent No. 7,231,430 to the company for "Reconfiguration, Virtual Processing System, Cluster, Network and Method," commonly known as the Egenera Processing Area Network (PAN) architecture. Egenera's PAN architecture virtualizes network, storage and compute resources, allowing application and data services to be provisioned, managed, migrated, and scaled transparently. The PAN architecture is the key enabling virtualization architecture behind all of the company's offerings -- both hardware and software.

In related news, Egenera also announced that the U.S. Patent and Trademark Office has issued U.S. Patent No. 7,228,265 for "System and method for emulating serial port communication," which provides access to Microsoft® Windows® consoles in a virtualized environment.

Egenera's PAN architecture facilitates strategic software functions including N+1 high availability, N+1 disaster recovery (also a patented Egenera innovation), chargeback, multisystems management, and the seamless integration of virtual machine technology through Egenera® vBlade™ software. The company's flagship Egenera® BladeFrame® system, which fuses virtualization software -- Egenera® PAN Manager™ software -- and stateless, bladed Processing Blade™ modules, leverages the PAN architecture, producing a fully redundant, highly available and integrated system.

Similar in concept to a storage area network (SAN), in a PAN, server resources containing only processors and memory are controlled via Egenera PAN Manager software. Virtual networking provides scalable, flexible LAN resources and storage resources are also presented as virtual assets, housed on SAN or network attached storage (NAS) devices. Effectively, the compute, storage and networking resources within a system are virtualized into resource pools that are provisioned dynamically within BladeFrame systems or across multiple Frames.

"Our PAN architecture patent is undoubtedly the most important innovation recognition we've achieved in our history, as well as the most important enabler for our customers' success with Egenera solutions," said Pete Manca, executive vice president of Engineering and CTO for Egenera. "The PAN is at the heart of how Egenera helps customers break free from legacy infrastructure constraints and achieve new levels of agility and simplicity within the data center."

About Egenera, Inc.

Egenera is a global leader in delivering data center virtualization solutions that reduce costs and complexity for enterprises and public sector agencies worldwide. The Egenera BladeFrame system virtualizes the data center with an innovative server architecture specifically designed to reduce complexity and enable IT to respond rapidly to business requirements. Market-leading enterprises around the world trust Egenera to run their most critical applications and achieve higher resource utilization, faster application time to market and lower total cost of ownership. Headquartered in Marlboro, Mass., Egenera has offices worldwide. For more information visit www.egenera.com, call 508-858-2600 or send email to info@egenera.com.

Egenera and Egenera stylized logos are trademarks or registered trademarks of Egenera, Inc. in the United States and other countries. All other company and product names are trademarks or registered trademarks of their respective holders. The information in this document is subject to change without notice.

Contact Information: Press Contacts: Gillian Farquhar Egenera, Inc. 508-858-3262 gfarquhar@egenera.com