Release Details

-- Linton-Smith Appointed Sales Manager for Queensland and Northern Territory --

Sydney, Australia — June 13 2006 — CommVault®, a leading provider of Unified Data Management Solutions, today announced the opening of a Queensland, Australia office and the addition of Ben Linton-Smith, Sales Manager for Queensland and Northern Territory, as a member of the CommVault Queensland team.

Based in Brisbane, Linton-Smith joins CommVault with 12 years of technical and sales experience, including over five years in the roles of senior system engineer and technical account manager.

Linton-Smith said, "I have worked in the data protection market for the last six years, and have seen first-hand the momentum CommVault has built. I am pleased to join the company as it continues to meet the needs of customers for a unified approach to data protection and management."

Linton-Smith will be responsible for expanding the Queensland territory through work with key partners and original equipment manufacturers. In addition, Linton-Smith will assist customers with technical pre-sales support.

Gerry Sillars, regional director of CommVault Oceania, said, "We have an outstanding team of sales, pre-sales and technical staff and we are very pleased to welcome Ben, especially as the first member of our Queensland team. Ben will be integral in developing our business in the northern regions."

About CommVault
CommVault® provides Unified Data Management™ solutions to ensure high- performance data protection, universal availability and simplified management of complex storage networks. The CommVault® QiNetix™ platform, based on CommVault's Common Technology Engine, integrates Galaxy backup and recovery, point-in-time replication, hierarchical storage management, archiving for compliance, service level management 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. CommVault's corporate headquarters in Australia is located in Sydney.

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.

©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.