Second Quarter Fiscal 2010 Highlights Include:

    GAAP Results:                                   
    Revenues                          $66.7 million 
    Income from Operations (EBIT)     $6.5 million  
    EBIT Margin                       9.8%          
    Diluted Earnings Per Share        $0.11         
                                                    
    Non-GAAP Results:                               
    Revenues                          $66.7 million 
    Income from Operations (EBIT)     $11.3 million 
    EBIT Margin                       17.0%         
    Diluted Earnings Per Share        $0.17         
                                                    


-------------------------------------------------------------------------------

CommVault (NASDAQ:CVLT) today announced its financial results for the second quarter ended September 30, 2009.

N. Robert Hammer, CommVault's chairman, president and CEO stated, "We achieved a solid second quarter which was highlighted by record revenues and a 150 basis point sequential improvement in Non-GAAP operating margins. Our sequential revenue growth of 11% was driven by larger enterprise deals, solid U.S. federal government business and strong demand for our deduplication and archiving products. Our second quarter results validate the underlying strength of the business and our continuing ability to increase market share."

Total revenues for the second quarter of fiscal 2010 were $66.7 million, an increase of 5% over the second quarter of fiscal 2009 and an increase of 11% over the prior quarter. Software revenue in the second quarter of fiscal 2010 was $33.5 million, a decrease of 5% year-over-year and up 15% sequentially. Services revenue in the second quarter of fiscal 2010 was $33.1 million, up 18% year-over-year and 6% sequentially.

Income from operations (EBIT) was $6.5 million for the second quarter, a 15% decrease from $7.7 million in the same period of the prior year. Non-GAAP income from operations (EBIT) increased 9% to $11.3 million in the second quarter of fiscal 2010 compared to $10.4 million in the second quarter of the prior year. On a sequential basis, Non-GAAP income from operations (EBIT) increased 21% in the second quarter of fiscal 2010.

For the second quarter of fiscal 2010, CommVault reported net income of $4.7 million, which was flat compared to the same period of the prior year. Non-GAAP net income for the quarter increased 1% to $7.8 million, or $0.17 per diluted share, from $7.7 million, or $0.17 per diluted share, in the same period of the prior year.

Operating cash flow totaled $10.6 million for the second quarter of fiscal 2010 compared to $14.2 million in the second quarter of fiscal 2009. Total cash and cash equivalents were $132.5 million as of September 30, 2009 compared to $105.2 million as of March 31, 2009.

CommVault did not repurchase any shares of common stock under its share repurchase plan during the second quarter of fiscal 2010. As of October 28, 2009, CommVault has repurchased $40.2 million of common stock (2,853,305 shares) out of the $80.0 million in total that is authorized under its stock repurchase program. As a result, CommVault may repurchase an additional $39.8 million of its common stock under the current program which runs through March 31, 2010.

A reconciliation of GAAP to non-GAAP results has been provided in Financial Statement Table IV included in this press release. An explanation of these measures is also included below under the heading "Use of Non-GAAP Financial Measures."

Recent Business Highlights:

On October 7, 2009, CommVault announced it has received a Certificate of Software Quality (GS Certificate) from the Telecommunications Technology Association of Korea (TTA) for its enterprise data management software, CommVault® Simpana® 8.

On October 7, 2009, CommVault announced that its Simpana® software and Simpana Universal Virtual Server Agent achieved VMware Ready Data Protection Status.

On August 18, 2009, CommVault announced it has received Federal Information Processing Standards (FIPS) 140-2 certification for its Cryptographic Library from the National Institute of Standards and Technology (NIST).

Use of Non-GAAP Financial Measures

CommVault has provided in this press release the following non-GAAP financial measures: non-GAAP income from operations, non-GAAP income from operations margin, non-GAAP net income and non-GAAP diluted earnings per share. This selected financial information has not been prepared in accordance with GAAP. CommVault uses these non-GAAP financial measures internally to understand, manage and evaluate its business and make operating decisions. In addition, CommVault believes these non-GAAP operating measures are useful to investors, when used as a supplement to GAAP financial measures, in evaluating CommVault's ongoing operational performance. CommVault believes that the use of these non-GAAP financial measures provide an additional tool for investors to use in evaluating ongoing operating results and trends, and in comparing its financial results with other companies in CommVault's industry, many of which present similar non-GAAP financial measures to the investment community.

These non-GAAP financial measures should be considered as a supplement to, and not as a substitute for or superior to, financial information prepared in accordance with GAAP. Investors are encouraged to review the reconciliation of these non-GAAP measures to their most directly comparable GAAP financial measures, which are provided in Table IV included in this press release.

Non-GAAP income from operations and non-GAAP income from operations margin. These non-GAAP financial measures exclude noncash stock-based compensation charges and additional FICA expense incurred by CommVault when employees exercise in the money stock options or vest in restricted stock awards. CommVault believes that these non-GAAP financial measures are useful metrics for management and investors because they compare CommVault's core operating results over multiple periods. When evaluating the performance of CommVault's operating results and developing short and long term plans, CommVault does not consider such expenses. Although noncash stock-based compensation and the related additional FICA expense are necessary to attract and retain employees, CommVault places its primary emphasis on stockholder dilution as compared to the accounting charges related to such equity compensation plans. In addition, because of the varying available valuation methodologies, subjective assumptions such as volatility outside CommVault's control and the variety of awards that companies can issue, CommVault believes that providing non-GAAP financial measures that exclude noncash stock-based compensation expense and the related additional FICA expense incurred on stock option exercises and vesting of restricted stock awards allow investors to make meaningful comparisons between CommVault's operating results and those of other companies.

There are a number of limitations related to the use of non-GAAP income from operations and non-GAAP income from operations margin. The most significant limitation is that these non-GAAP financial measures exclude certain operating costs, primarily related to noncash stock-based compensation, which is of a recurring nature. Noncash stock-based compensation has been, and will continue to be for the foreseeable future, a significant recurring expense in CommVault's operating results. In addition, noncash stock-based compensation is an important part of CommVault's employees' compensation and can have a significant impact on their performance. Lastly, the components CommVault excludes in its non-GAAP financial measures may differ from the components that its peer companies exclude when they report their non-GAAP financial measures.

CommVault's management generally compensates for limitations described above related to the use of non-GAAP financial measures by providing investors with a reconciliation of the non-GAAP financial measure to the most directly comparable GAAP financial measure. Further, CommVault management uses non-GAAP financial measures only in addition to, and in conjunction with, results presented in accordance with GAAP.

Non-GAAP net income and non-GAAP diluted EPS. Non-GAAP net income excludes noncash stock-based compensation and the related additional FICA expense incurred by CommVault when employees exercise in the money stock options or vest in restricted stock awards, which are discussed above, as well as applies a non-GAAP effective tax rate of 32% in fiscal 2010 and 30% in fiscal 2009.

During the six months ended September 30, 2009, CommVault identified and recorded certain non-cash prior period errors totaling a net expense amount of approximately $1,155,000. The Company has concluded that these errors are not material to any prior annual period or to the expected fiscal year 2010 financial position or results of operations. Specifically, CommVault recorded non-cash tax expense of $915,000 in the first quarter of fiscal 2010 to write-off deferred tax assets related to estimated foreign tax credits associated with CommVault's Netherlands branch that were improperly recorded in fiscal 2008. In addition, CommVault recorded a non-cash tax benefit of $587,000 in the second quarter of fiscal 2010. This benefit is primarily related to a correction of its deferred tax assets resulting from the understatement of tax basis depreciation on its fixed assets in prior fiscal periods.