Release Details

OCEANPORT, N.J.--(BUSINESS WIRE)--Sept. 15, 2008--CommVault (NASDAQ:CVLT):

• For the third time in four years, CommVault(R) software has won the Diogenes Labs - Storage magazine Quality Award in the enterprise-class backup and recovery software category, as featured in the September 2008 issue of Storage magazine.
• CommVault secured the number one overall ranking against a field of four other enterprise competitors with top marks for product features and product reliability. Additionally, when asked about their willingness to repurchase Simpana(R) software again, more than 80 percent of those surveyed said they would, demonstrating the overall strength of the user experience gained when deploying CommVault software.
• CommVault Simpana software simplifies the administration of increasingly complex storage environments using a unique single platform approach that helps customers better manage and protect data, while reducing the operational costs associated with IT management. More companies chose CommVault for its ability to manage disk-based environments, as evidenced by the survey where 83.3 percent of respondents use CommVault software to backup to disk.
• A recognized award program based on objective, empirical and statistically valid assessment of product quality and reliability, the Diogenes Labs - Storage magazine Quality Award program is designed to quantify real-world experience factors by surveying IT professionals directly. For the enterprise backup and recovery software program, more than 450 respondents identified as backup and recovery users were assessed across several categories: sales force competence, product features, initial product quality, product reliability and technical support.
• CommVault has consistently built on its history of product innovation to make CommVault Simpana Backup software one of the industry's leading data protection solutions. In addition to winning this year's Diogenes Labs - Storage magazine Quality Award again, CommVault Simpana Backup software also ranked a "positive" -- the highest rating awarded to any of this year's participating vendors -- by Gartner research in its 2008 MarketScope for Enterprise Backup/Recovery Software report, further underscoring CommVault's leading position in the enterprise backup and recovery market.

• "Customers have spoken out once again; CommVault is the clear enterprise leader. Receiving the Diogenes Labs - Storage magazine Quality Award is a great honor and a testament to Simpana software's best-in-class capabilities. The customer is always the driving force behind everything we do - it is as simple as that. To ensure that we consistently make our customers' shortlist, we remain committed to delivering easy-to-use, dependable, feature rich software that helps solve the IT and business data management requirements for customers today and in the future," said Bob Hammer, chairman, president and CEO of CommVault.

• Read the Diogenes Labs - Storage magazine Quality Award for Enterprise Backup and Recovery software analysis
• Learn about the CommVault Simpana software suite
• Read about customer deployments of Simpana software
• Read the CommVault Whitepaper, "Best Practices for Switching Your Backup Software"
• CommVault has been rated "Positive" in the Gartner MarketScope for Enterprise Backup/Recovery Software, 2008. Read the report
• Read the CommVault Customer Survey: Data Validation and User ROI

The Diogenes Labs - Storage Magazine Quality Awards are designed to identify and recognize products that have proven their quality and reliability in actual use. The results are derived from a survey of qualified Storage subscribers, who assess products in five main categories: sales force competence, product features, initial product quality, product reliability and technical support. Their methodology incorporates statistically valid polling that eliminates market share as a factor. Their objective is to identify the most reliable products on the market regardless of vendor name, reputation or size. Products are rated on a scale from 1.0 to 8.0, where 8.0 is the most favorable possible score. For more information about this awards program, visit www.searchstorage.com.

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(R) 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(R) 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-pd)

Safe Harbor 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 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)1999-2008 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.

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