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:
Mar. 14, 2000
Filed:
Sep. 03, 1997
Applicant:
Inventor:
Takuya Saegusa, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
714-6 ; 714 30 ; 714 42 ; 714 47 ;
Abstract
A multi-array disk apparatus includes first and second logical drives, a first array controller, a second array controller, and interface control circuits. Each of the first and second logical drives has two logical structure disks constituting a pair. The first array controller controls the first logical drive. The second array controller controls the second logical drive. When a fault occurs in the other of the first and second array controllers, the interface control circuits bus-connect one of the first and second array controller in which no fault occurs to the logical structure disk connected to the other of the first and second array controller in which the fault occurs.