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. 09, 2005
Filed:
Aug. 01, 2000
David Alan Burton, Vail, AZ (US);
Norio Fujita, Shiga-Ken, JP;
Robert Louis Morton, Tucson, AZ (US);
Koji Nakase, Kanagawa, JP;
David Alan Burton, Vail, AZ (US);
Norio Fujita, Shiga-Ken, JP;
Robert Louis Morton, Tucson, AZ (US);
Koji Nakase, Kanagawa, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disclosed is a method, system, and data structures for updating data in a storage device. An update to one or more blocks of customer data at addresses in the storage device is received. For each block of data to update, metadata is generated indicating the address of the block in the storage device and an error checking code that is capable of being used to determine whether the customer data in the block has changed. For each block of data to update, the block of data to update and the metadata for the block are written to cache. Further, for each block of data to update, the block of data and the metadata are transferred for the block from the cache to the storage device. The metadata may be used during power loss and recovery.