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:
Mar. 03, 2009
Filed:
Aug. 23, 2006
Jason B. Schilling, Colorado Springs, CO (US);
Brad D. Besmer, Colorado Springs, CO (US);
Jason B. Schilling, Colorado Springs, CO (US);
Brad D. Besmer, Colorado Springs, CO (US);
LSI Corporation, Milpitas, CA (US);
Abstract
Systems and methods for improving performance of a re-synchronization process in a RAID level 1 storage system. In one aspect a local cache memory associated with the second or mirrored disk drive is enabled during the re-synchronization operation but left disabled during normal operation processing host requests. The cache is flushed to the persistent medium of the second disk drive before resuming normal I/O request processing. In another aspect normal I/O request processing is interleaved with portions of the processing for re-synchronization of the mirrored disk drive. Normal I/O request processing proceeds for a first period of time. Re-synchronization processing for a portion of the mirrored information then proceeds (with local cache memory of the mirrored disk drive enabled) for a second period of time.