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. 01, 2007
Filed:
Sep. 22, 2003
Host i/o performance and availability of a storage array during rebuild by prioritizing i/o requests
David K. Umberger, Boise, ID (US);
Rodger D. Daniels, Boise, ID (US);
Mohamed Belhadj, Eagle, ID (US);
David K. Umberger, Boise, ID (US);
Rodger D. Daniels, Boise, ID (US);
Mohamed Belhadj, Eagle, ID (US);
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Improved host I/O performance and availability of a storage array during rebuild is obtained by prioritizing I/O requests. In one embodiment, rebuild I/O requests are given priority over host I/O requests when the storage array is close to permanently losing data (for example, failure of one more particular disk in the storage array would result in data loss). Rebuild I/O requests continue to have priority over host I/O requests until the storage array is no longer close to permanently losing data, at which point host I/O requests are given priority over rebuild I/O requests.