InfoStor : CommVault: Commvault Joins The Green Grid Consortium; CommVault Simpana Software SuiteDelivers Data Management Efficiency Through Single, Unified Approach, August 2008

CommVault(NASDAQ: CVLT), Reading, Berkshire. -- CommVault today announced its membership in The Green Grid, a global consortium dedicated to advancing energy efficiency in data centres and business computing ecosystems.

The Green Grid is chartered to develop industry-wide standards, measuring methods, processes and new technologies to improve overall data centre and business computing energy efficiencies. Membership in The Green Grid is open to IT industry professionals, including data centre managers and IT operations executives, with an interest in addressing global energy consumption issues.

As power, space and cooling requirements continue to grow in worldwide data centres, CommVault's participation in The Green Grid demonstrates the company's continued commitment to advancing greater energy efficiency within data centres. As a member of The Green Grid, CommVault will collaborate to develop best practices that help customers increase storage efficiencies, eliminate redundant copies of data and reduce power, cooling and floor space requirements.

CommVault Simpana 7.0 softwareSuite Helps Customers Implement Sustainable Green' Data Centre Strategies

CommVault enterprise data management solutions enable data management efficiency by addressing multiple enterprise data needs with a single, unified approach. CommVault helps to reduce data centre energy consumption and associated costs by providing technology that maximizes existing IT investments and reduces raw storage.

Today, customers can implement CommVault Simpana software to eliminate redundant copies of data for backup, archive and replication. This results in extending enterprise IT investments to maximize cost efficiencies and minimize data centre demands.

CommVault Simpana software also enables IT administrators to report and gain visibility into the data scattered across the enterprise. After running reports and analyzing the results, IT can create policies to optimize their tiered storage infrastructure by defining levels of service across tiers of storage that optimize storage utilization and cut costs.

The U.S. Environmental Protection Agency (EPA) estimates that data centres consumed about 61 billion kilowatt-hours (kWh) in 2006, which is 1.5 percent of total U.S. electricity consumption, for a total electricity cost of about $4.5 billion. This estimated level of electricity consumption is more than the electricity consumed by the nation's colour televisions and similar to the amount of electricity consumed by approximately 5.8 million average U.S. households, or about five percent of the total U.S. housing stock. Federal servers and data centres alone account for approximately 6 billion kWh, which is 10 percent of this electricity use, for a total electricity cost of about $450 million annually[i].

Supporting Quotes

"Simply looking at the news headlines on any given day is a reminder of the global responsibility all companies have to address today's need for greener business strategies. With energy costs rising, reducing data centre energy consumption and inefficiency has become an economic imperative. An effective green IT strategy does more than aim to heal global ecosystems and the environment. A truly good green IT strategy creates new, real and measurable consumption efficiencies, improving enterprise performance, and tangibly minimizing enterprise costs - today, and in the future. CommVault's membership in The Green Grid underscores our continued commitment to providing our customers with the solutions they need to advance greater data centre efficiency and deliver solid business returns," said Michael Marchi, vice president of product and segment marketing, CommVault.

About CommVault

A singular vision - a belief in a better way to address current and future data management needs - guides CommVault in the development of Singular Information Management solutions for high-performance data protection, universal availability and simplified management of data on complex storage networks. CommVault's exclusive single-platform architecture gives companies unprecedented control over data growth, costs and risk. CommVault's Simpana software suite of products was designed to work together seamlessly from the ground up, sharing a single code and common function set, to deliver superlative Data Protection, Archive, Replication, Search and Resource Management capabilities. More companies every day join those who have discovered the unparalleled efficiency, performance, reliability, and control only CommVault can offer. Information about CommVault is available at www.commvault.com. CommVault's corporate headquarters is located in Oceanport, New Jersey in the United States. (cvlt-pt)

Safe Harbour Statement

Customers' results may differ materially from those stated herein; CommVault does not guarantee that all customers can achieve benefits similar to those stated above. This press release may contain forward-looking statements, including statements regarding financial projections, which are subject to risks and uncertainties, such as competitive factors, difficulties and delays inherent in the development, manufacturing, marketing and sale of software products and related services, general economic conditions and others. Statements regarding CommVault's beliefs, plans, expectations or intentions regarding the future are forward-looking statements, within the meaning of Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended. All such forward-looking statements are made pursuant to the safe harbour provisions of the Private Securities Litigation Reform Act of 1995. Actual results may differ materially from anticipated results. CommVault does not undertake to update its forward-looking statements.

1999-2008 CommVault Systems, Inc. All rights reserved. CommVault, CommVault and logo, the "CV" logo, CommVault Systems, Solving Forward, SIM, Singular Information Management, Simpana, CommVault Galaxy, Unified Data Management, QiNetix, Quick Recovery, QR, CommNet, GridStor, Vault Tracker, InnerVault, Quick Snap, QSnap, Recovery Director, CommServe, CommCell and ROMS, are trademarks or registered trademarks of CommVault Systems, Inc. All other third party brands, products, service names, trademarks, or registered service marks are the property of and used to identify the products or services of their respective owners. All specifications are subject to change without notice.

[1]U.S. Environmental Protection Agency. (August 2, 2007) "Report to Congress on Server and Data Center Energy Efficiency - Public Law 109-431"

CONTACT: Gary Marshall, Media Contact, senior consultant, maillot jaune Tel: +44 (0)7733 22 4654 Fax: +44 (0)8703836 706 e-mail: Gary.marshall@maillot-jaune.co.uk WWW: http://www.maillot-jaune.co.uk Fiona Moon, CommVault Tel: +44 (0)1189 516 525 e-mail: fmoon@commvault.com

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