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:
May. 08, 2012
Filed:
Oct. 06, 2008
James Lee Hafner, San Jose, CA (US);
Wendy Ann Belluomini, San Jose, CA (US);
Douglas William Dewey, Tucson, AZ (US);
Brian D. Mckean, Longmont, CO (US);
Donald R. Humlicek, Wichita, KS (US);
Kevin L. Kidney, Lafayette, CO (US);
Theresa L. Segura, Broomfield, CO (US);
James Lee Hafner, San Jose, CA (US);
Wendy Ann Belluomini, San Jose, CA (US);
Douglas William Dewey, Tucson, AZ (US);
Brian D. McKean, Longmont, CO (US);
Donald R. Humlicek, Wichita, KS (US);
Kevin L. Kidney, Lafayette, CO (US);
Theresa L. Segura, Broomfield, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for validating data in a data storage system comprising associating a first data chunk with first check data and storing the first data chunk and the first check data on a first storage device. Additional associated data chunks of the first data and associated additional check data are stored on at least one of the first storage device or one or more additional storage devices. At least a portion of the first check data and at least a portion of the additional check data are stored to a second storage device, which is distinct from the first storage device and the additional storage devices. I/O access to the second storage device is minimized by retaining at least a portion of the first check data and at least a portion of the additional check data in a readily accessible storage medium, during servicing of a first I/O request.