Release Details

Addresses Hot Button Issues Facing IT, Legal, and Compliance

                              Departments

OCEANPORT, N.J.--(BUSINESS WIRE)--Sept. 18, 2007--CommVault (NASDAQ:CVLT):

    News Facts:

    --  CommVault(R) (NASDAQ:CVLT) today announced that the company
        will be hosting a weekly series aimed at addressing industry
        issues including controlling explosive data growth, recent
        amendments to the FRCP, and corporate governance, among other
        timely information.

    --  90 percent of U.S. corporations are engaged in some type of
        litigation. The unpredictability of the pace or size of a
        case, together with the exponential growth of data, evolving
        case law, Sarbanes-Oxley, and privacy regulations make
        responding to legal requests even more costly and complex.

    --  This regularly scheduled series will address these issues,
        featuring a product overview and demonstration of CommVault
        Archive Solutions with members of the CommVault Archive Center
        of Excellence team.

    --  Each session will conclude with an interactive Q & A session.

    When: Every Tuesday

    Time: 11am - noon Eastern Time

    Register at: http://www.commvault.com/ArchiveWebinars/

Additional Links:
-- Find information on key topics including:
    -- Archive
    -- Legal Discovery
    -- E-mail Compliance
-- Subscribe to the CommVault Mailing List for the latest news and
   product information.
-- Explore the CommVault Products Page for Datasheets, Solution Briefs
   & White Papers
-- Visit the CommVault Events Schedule for executive appearances.

About CommVault(R)

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(TM) 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 software 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. 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-m)

Safe Harbor Statement

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 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.

(C)1999-2007 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, GridStor, Vault Tracker, QuickSnap, QSnap, Recovery Director, CommServe, CommCell, and InnerVault 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.

    CONTACT: Media Contact:
             CommVault
             Dani Kenison, 732-728-5370
             pr@commvault.com
             or
             Investor Relations Contact:
             CommVault
             Michael Picariello, 732-728-5380
             ir@commvault.com

    SOURCE: CommVault