Release Details

-- CDR Connects Critical Remote Office Data to the Enterprise --

Oceanport, N.J. — June 22, 2006 — CommVault®, a provider of Unified Data Management™ solutions, today announced general availability of ContinuousDataReplicator (CDR), Version 6.1 software, extending CommVault's support for the remote office market. A component of the CommVault QiNetix Unified Data Management suite, CDR is fully integrated with and aware of key enterprise applications such as Microsoft Exchange and SQL Server. CDR can be configured as a stand-alone replication solution or as part of a comprehensive QiNetix data management solution.

Under a single policy, CDR software integrates file-level data replication with snapshot, backup and archiving functionality. CDR incorporates innovative technologies which provide point-in-time recovery, reduce network traffic and support rapid deployment. Consistent Recovery PointsTM maintain data and application consistency while offering multiple point-in-time snapshots for roll-back recovery., Rapid re-sync in the event of a network outage quickly re-establishes replica integrity. Finally, Out-of-Band Synchronization™ is an offline feature for initial replication of large data sets over limited network bandwidth.

For enterprise customers with remote offices, CDR delivers continuous data protection and leverages the unified benefits of CommVault's QiNetix product suite for cost-effective, high performance disaster recovery and data protection.

For more information: visit: www.commvault.com/remote_replication.asp

About CommVault
CommVault® provides Unified Data Management™ solutions for high- performance data protection, universal availability and simplified management of data on complex storage networks. The CommVault® QiNetix™ platform, based on CommVault's Common Technology Engine, integrates Galaxy backup and recovery, replication, snapshot management and recovery, 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 on the World Wide Web at www.commvault.com or by calling (732) 870-4000. CommVault's corporate headquarters is located in Oceanport, New Jersey in the United States.

©2006 CommVault Systems, Inc. CommVault Systems, CommVault Galaxy, CommVault QiNetix, DataMigrator, DataArchiver, QNet, CommServe StorageManager, MediaAgent, iDataAgent, CommCell and the CommVault logo are trademarks and may be registered trademarks in some jurisdictions of CommVault Systems, Inc. Product and company names herein may be trademarks of their respective owners.

This media alert 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.