Exhibit 32.1
CERTIFICATION OF CHIEF
EXECUTIVE OFFICER
PURSUANT
TO
18 U.S.C. SECTION
1350,
AS ADOPTED PURSUANT
TO
SECTION 906 OF THE
SARBANES-OXLEY ACT OF 2002
I, Richard E. Belluzzo, certify, pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that the
Quarterly Report of Quantum Corporation, on Form 10-Q for the quarterly period
ended December 31, 2009 fully complies with the requirements of Section 13(a) or
15(d) of the Securities Exchange Act of 1934, as amended, and that information
contained in such Quarterly Report on Form 10-Q fairly presents in all material
respects the financial condition and results of operations of Quantum
Corporation.
Date: February 5, 2010
| QUANTUM CORPORATION |
| |
| /s/ RICHARD E.
BELLUZZO |
Richard E. Belluzzo
Chairman and Chief Executive
Officer |