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. 27, 2007
Filed:
May. 29, 2003
William Alexander Brant, Boulder, CO (US);
Michael Edward Nielson, Broomfield, CO (US);
Noel Simen Otterness, Lafayette, CO (US);
Thomas Elkins Richardson, Golden, CO (US);
William Alexander Brant, Boulder, CO (US);
Michael Edward Nielson, Broomfield, CO (US);
Noel Simen Otterness, Lafayette, CO (US);
Thomas Elkins Richardson, Golden, CO (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A process, apparatus, and system stores data check information on an electronic storage medium that uses standard sector data field sizes. The check information may include a cyclic redundancy check (CRC), a logical block address (LBA), a longitudinal redundancy check (LRC), state information, a sequence number, or other information to identify data state, misplacement, or corruption. The check information, instead of being appended to the data within the data sector, may be stored in an independent check sector. The check information corresponding to multiple data sectors may also be aggregated and stored in a single check sector. The process or apparatus may be incorporated in a storage system controller, a RAID controller, a software SCSI stack in a computer, an operating system, a storage device driver, or another appropriate application that interfaces with standard and commodity storage system components.