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:
Nov. 10, 1998
Filed:
Dec. 18, 1992
Shigeo Konno, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In an apparatus and method for diagnosing a plurality of disk drives in at least one disk array device, including a disk array control unit which is connected in parallel with a plurality of data storage disk drives, a redundant disk drive and a spare storage disk drive, and which is adapted to access the plurality of disk drives in parallel in response to an access from a host device. The disk array control unit accesses the spare storage disk drive as well as the plurality of data storage disk drives and the redundant storage disk drive, in accordance with a data transfer requirement from the host device, thereby diagnosing the storage disk drive, when the data transfer requirement represents a read transfer or write transfer.