CHANGE IN CONTROL SEVERANCE AGREEMENT
THIS CHANGE IN CONTROL SEVERANCE AGREEMENT (this “ Agreement ”) is made and
entered into by and between QLogic Corporation, a Delaware corporation (the “ Company ”), and Simon
Biddiscombe (the “ Executive ”).
A. The Board of Directors of the Company has approved the Company entering into a severance agreement
with the Executive.
B. The Executive is a key executive of the Company.
C. Should the possibility of a Change in Control of the Company arise, the Board believes it is imperative that
the Company and the Board be able to rely upon the Executive to continue in his position, and that the Company
should be able to receive and rely upon the Executive’s advice, if requested, as to the best interests of the
Company and its stockholders without concern that the Executive might be distracted by the personal
uncertainties and risks created by the possibility of a Change in Control.
D. Should the possibility of a Change in Control arise, in addition to his regular duties, the Executive may be
called upon to assist in the assessment of such possible Change in Control, advise management and the Board as
to whether such Change in Control would be in the best interests of the Company and its stockholders, and to
take such other actions as the Board might determine to be appropriate.
E. This Agreement provides the benefits the Executive will be entitled to receive upon certain terminations of
employment in connection with a Change in Control from and after the Effective Date and supersedes and
negates all previous agreements with respect to such benefits.
NOW THEREFORE , to help assure the Company that it will have the continued dedication of the
Executive and the availability of his advice and counsel notwithstanding the possibility, threat, or occurrence of a
Change in Control of the Company, and to induce the Executive to remain in the employ of the Company in the