2007

Voltaire and Cluster Resources Collaborate to Deliver Resource Management and Scheduling for Unified Fabrics

Solution Brings New Levels of Efficiencies by Managing Heterogeneous Resources and Dynamically Forming "Application Environments" to Meet Application Needs and Service Level Objectives

BILLERICA, Mass. and HERZELIYA, Israel — November 8, 2007 — Voltaire Ltd. (NASDAQ: VOLT), a leading provider of grid backbone solutions for the data center, today announced that the company is working with Cluster Resources, Inc. to deliver an integrated management, scheduling and provisioning solution for unified fabrics consisting of compute, storage and network resources.

By combining Voltaire's GridVision Enterprise management software with Cluster Resources' Moab family of scheduling products, the companies now offer the first integrated solution to dynamically form multiple "application environments" from shared pools of physical or virtual compute, software, network and storage resources. These application environments can be scheduled and scaled dynamically to meet specific application and organization service level objectives. This capability is critical for computation centers or on-demand facilities that serve multiple users, applications or organizations, or for customers who plan to consolidate multiple server farms and clusters to gain more capacity with fewer resources.

"By integrating Voltaire's GridVision Enterprise software with Cluster Resources' Moab scheduler and orchestrator, we have created a powerful provisioning and management solution for unified server and storage fabrics," said Yaron Haviv, Chief Technology Officer, Voltaire. "As part of this solution, Moab determines when application resources are needed and in what capacity, based on requests, policy and workload, and instructs GridVision Enterprise -- which acts as the resource manager -- to create, virtualize, re-allocate or alter the infrastructure."

The joint solution provides the ability for each new environment to be fully isolated from the other, have a unique configuration and topology, and allow resources to be consumed only when needed and in the right amount or priority. This creates greater efficiencies and better performance of the server farm, as well as better alignment with service objectives.

"Cluster Resources recognizes the synergy between Voltaire's next generation data center, network and virtualization technologies and our workload and resource orchestration," said Michael Jackson, President of Cluster Resources. "Our vision is to create an intelligently orchestrated dynamic environment for our customers and this joint solution helps us further deliver on this goal."

SC|07 Demonstration and Presentation

Voltaire will demonstrate the solution in its technology showcase in booth # 1137 at the Supercomputing 07 show in Reno, Nevada from November 12 — 15, 2007. The solution will also be presented by Voltaire's CTO, Yaron Haviv, in a session entitled, "Managing Network and Storage Infrastructure as an Application Resource" on Tuesday, November 13, 2007 at 4:00 pm in room A7.

About Voltaire

Voltaire (NASDAQ: VOLT) designs and develops server and storage switching and software solutions that enable high-performance grid computing within the data center. Voltaire refers to its server and storage switching and software solutions as the Voltaire Grid Backbone^™. Voltaire's products leverage InfiniBand technology and include director-class switches, multi-service switches, fixed-port configuration switches, Ethernet and Fibre Channel routers and standards-based driver and management software. Voltaire's solutions have been sold to a wide range of end customers including governmental, research and educational organizations, as well as enterprises in the manufacturing, oil and gas, entertainment, life sciences and financial services industries.

Founded in 1997, Voltaire Ltd. is headquartered in Herzeliya, Israel, and has its U.S. headquarters in Billerica, Massachusetts. More information about Voltaire is available at www.voltaire.com or by calling 1-800-865-8247.

Forward Looking Statements

Information provided in this press release may contain statements relating to current expectations, estimates, forecasts and projections about future events that are "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. These forward-looking statements generally relate to the Voltaire's plans, objectives and expectations for future operations and are based upon management's current estimates and projections of future results or trends. Actual future results may differ materially from those projected as a result of certain risks and uncertainties. These factors include, but are not limited to, those discussed under the heading "Risk Factors" in Voltaire's final prospectus for its IPO filed with the Securities and Exchange Commission on July 27, 2007. These forward-looking statements are made only as of the date hereof, and we undertake no obligation to update or revise the forward-looking statements, whether as a result of new information, future events or otherwise.

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