The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 20, 2010
Filed:
Jun. 23, 2008
Larry J. Cravens, Pine Island, MN (US);
Jay Paul Kurtz, Rochester, MN (US);
Kenneth Gerald Linn, Rochester, MN (US);
Glen W. Nelson, Rochester, MN (US);
Kenneth Charles Vossen, Rochester, MN (US);
Donald L. Ward, Rochester, MN (US);
Larry J. Cravens, Pine Island, MN (US);
Jay Paul Kurtz, Rochester, MN (US);
Kenneth Gerald Linn, Rochester, MN (US);
Glen W. Nelson, Rochester, MN (US);
Kenneth Charles Vossen, Rochester, MN (US);
Donald L. Ward, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus and computer program product are provided for implementing feedback directed deferral on nonessential direct access storage device (DASD) operations. A kernel DASD I/O manager maintains a queue depth count value for a DASD unit and maintains a busy flag that indicates when the queue depth count value is greater than a predefined threshold. The kernel DASD I/O manager defers optional operations responsive to the busy flag being set for the DASD unit.