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:
Aug. 17, 2010
Filed:
May. 23, 2008
Carl Edward Forhan, Rochester, MN (US);
Robert Edward Galbraith, Rochester, MN (US);
Adrian Cuenin Gerhard, Rochester, MN (US);
Carl Edward Forhan, Rochester, MN (US);
Robert Edward Galbraith, Rochester, MN (US);
Adrian Cuenin Gerhard, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
When parity checking in a disk array such as a RAID-6 system determines data and parity information is unsynchronized, additional calculations are performed to determine whether the error may be attributed to faulty data on a disk drive or to a more systemic problem such as a faulty controller. In particular, for each particular error detected, the parity generating information is analyzed to determine if each error involves a common disk index. If so, the data can be corrected on that disk; if not other corrective procedures are implemented.