CommVault Granted Seven New Patents for Key Innovations in Its Unified Data Management Portfolio

March 20, 2007

Patents Validate CommVault's Commitment to Delivering Products That Reduce the Complexity of Managing Data

OCEANPORT, N.J., March 20, 2007 /PRNewswire-FirstCall via COMTEX News Network/ -- CommVault(R) (Nasdaq: CVLT), a leading provider of Unified Data Management(R) solutions, today announced that it has been granted a series of new patents for important innovations in data management technology by the United States Patent and Trademark Office and other foreign patent offices.

Continuing in the company's commitment to reducing the cost and complexity of managing data, "System and method for dynamically sharing media," U.S. patent No. 7,174,433, is the latest patent granted to CommVault and was issued February 6, 2007. The newly awarded patent relates to key technologies for sharing storage media in computer networks. Among other advantages, the patent discloses efficient use of resources by enabling multiple storage policies to share tapes and other pieces of removable media. Optimizing storage of information on media significantly reduces costs for customers.

Since September 1, 2006, CommVault has secured a number of other patents that continue to expand its existing technology portfolio, including:

    --  "Logical view and access to data managed by a modular data and storage
        management system," Hong Kong patent No. HK1063860, issued
        January 26, 2007.
    --  "System and method for blind media support," U.S. patent No.
        7,162,496, issued January 9, 2007.
    --  "E-Mail attachment management in a computer system," U.S. patent No.
        7,155,481, issued December 26, 2006.
    --  "Dynamic storage device pooling in a computer system," U.S. patent No.
        7,130,970, issued October 31, 2006.
    --  "Dynamic storage device pooling in a computer system," United Kingdom
        patent No. GB2410106, issued September 13, 2006.
    --  "System and method for archiving objects in an information store,"
        U.S. patent No. 7,107,298, issued September 12, 2006.

These unique technologies were developed by CommVault's engineering team, primarily at the company's Oceanport, N.J. headquarters. The inventions represent a strong addition to CommVault's growing patent portfolio, which enables the company to combine the benefits of an innovative, highly scalable and unified architecture with award-winning data management software. For customers, this translates to reduced complexity and increased efficiency gains in managing data access and availability.

"CommVault continues to invest in research and development that brings innovative technology solutions to market while delivering new levels of performance, reliability, scalability and value," said Alan Bunte, executive vice president and COO, CommVault. "These patents not only serve to protect the techniques we use today for managing and protecting data, but going forward we expect such innovations will offer a basis for our continued differentiation as the storage software market grows."

CommVault maintains a diverse portfolio of intellectual property, including patents, copyrights, trademarks, trade secrets and technological know-how. In particular, CommVault frequently applies for patents in the United States and internationally to protect its inventions. CommVault currently owns 14 issued patents and 106 pending patent applications in the United States, as well as 19 issued patents in foreign countries and 71 pending foreign patent applications.

"These patents continue CommVault's historically strong commitment to protecting our intellectual property," said Marcus Muller, intellectual property counsel, CommVault. "We will continue to assess appropriate occasions to seek patent and other intellectual property protection for innovative aspects of our technology that we believe provide us significant competitive advantage."

About CommVault

CommVault(R) provides Unified Data Management(R) solutions for high- performance data protection, universal availability and simplified management of data on complex storage networks. The CommVault(R) QiNetix(TM) platform, based on CommVault's Common Technology Engine(TM), integrates CommVault Galaxy(R) backup and recovery, snapshot management and recovery, remote replication, active data migration and archiving, e-mail compliance, enterprise service level management and reporting and storage resource management software solutions. The QiNetix unified approach is designed to allow customers to add/integrate QiNetix components, at a fraction of the time, effort and money required by separate point products.

Information about CommVault is available at http://www.commvault.com or by calling 732-870-4000. CommVault's corporate headquarters is located in Oceanport, New Jersey in the United States. (cvlt-c)

Safe Harbor

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. There is no guarantee that pending patent applications will result in issued patents. CommVault may elect to abandon or otherwise not pursue prosecution of certain pending patent applications. 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 harbor 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.

CommVault Systems, Inc., CommVault Systems, CommVault Galaxy, QiNetix, Unified Data Management, Common Technology Engine, and the CommVault logo are trademarks or registered trademarks of CommVault Systems, Inc. Product and company names herein may be trademarks of their respective owners.

SOURCE CommVault

Media, Dani Kenison, +1-732-728-5370, pr@commvault.com, or Investors, Michael
Picariello, +1-732-728-5380, ir@commvault.com, both of CommVault
http://www.commvault.com/