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:
Sep. 14, 2004
Filed:
Aug. 16, 2002
Applicant:
Inventor:
Sohail Hameed, Houston, TX (US);
Assignee:
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/200 ;
U.S. Cl.
CPC ...
G06F 1/200 ;
Abstract
A dual-cache array controller for a hard-drive based storage system includes software for identifying and addressing errors made in user handling of the cache boards. Controller firmware is programmed to determine whether or not there is any unflushed data in a cache board, to identify a used cache board, and to detect whether or not the cache board belongs to the controller in use or to another controller. Once a problem is identified, the controller is further programmed to issue an appropriate error message and to take corrective action, such as locking up the system until the correct cache board changes are made.