On June 15, 2009, Data Domain, Inc. ("Data Domain") issued a press release relating to the proposed merger with NetApp, Inc. and EMC Corporation's tender offer to acquire all of the outstanding shares of Data Domain common stock for $30.00 per share in cash. A copy of the press release is attached hereto as Exhibit 99.1.

Additional Information and Where to Find It

NetApp has filed with the SEC a Registration Statement on Form S-4 in connection with the proposed merger with NetApp that contains a Proxy Statement/Prospectus that Data Domain will mail to its stockholders in connection with the proposed merger with NetApp. The Registration Statement and the Proxy Statement/Prospectus contain important information about NetApp, Data Domain, the proposed merger with NetApp and related matters. Investors and security holders are urged to read the Registration Statement and the Proxy Statement/Prospectus carefully when they are available. Investors and security holders are able to obtain free copies of the Registration Statement and the Proxy Statement/Prospectus and other documents filed with the SEC by NetApp and Data Domain through the web site maintained by the SEC at www.sec.gov and by contacting Data Domain Investor Relations at (408) 980-4909. In addition, investors and security holders will be able to obtain free copies of the documents filed with the SEC on Data Domain's website at www.datadomain.com.

Participants in the Acquisition of Data Domain

NetApp, Data Domain and their respective directors, executive officers and certain other members of management and employees may be deemed to be participants in the solicitation of proxies in respect of the proposed merger with NetApp. Information regarding these persons who may, under the rules of the SEC, be considered participants in the solicitation of Data Domain stockholders in connection with the proposed merger with NetApp will be set forth in the Proxy Statement/Prospectus described above when it is filed with the SEC. Additional information regarding NetApp's executive officers and directors is included in NetApp's definitive proxy statement, which was filed with the SEC on July 14, 2008, and additional information regarding Data Domain's executive officers and directors is included in Data Domain's definitive proxy statement, which was filed with the SEC on June 10, 2009. You can obtain free copies of these documents from NetApp or Data Domain using the contact information above.

(d) Exhibits

        Exhibit
        Number    Description
         99.1     Press Release by Data Domain, Inc., dated June 15, 2009.