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:
Oct. 18, 1994
Filed:
Dec. 02, 1991
Applicant:
Inventor:
Yumiko Ohizumi, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
371 101 ; 371-7 ; 364245 ;
Abstract
In an array disk storage system, when a fault occurs in one of a plurality of regular disk storages and a disk storage for parity, restored data generated from data stored in the remaining functioning disks is written to the spare disk storage, and the restored data is copied to a new disk storage which has replaced the faulty disk. The writing of new data is carried out such that new data is written to both the spare disk storage and the new disk storage to which a writing of the restored data from the spare disk storage is being carried out, in response to an instruction from an upper grade device to write the new data.