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. 01, 2005
Filed:
Mar. 03, 2003
Hiroki Kanai, Odawara, JP;
Seiji Kaneko, Zama, JP;
Hiroki Kanai, Odawara, JP;
Seiji Kaneko, Zama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A disk control device of the present invention comprises a plurality of disk control units. Each disk control unit includes: at least one channel controller having an interface to a host computer; at least one disk controller having an interface to a disk device; and an internal coupling for connecting the channel controller, the disk controller, and a cache memory for temporarily storing data to be written to or read from the disk device. The disk control device further comprises: a first coupling unit for connecting the internal coupling of each disk control unit to read or write data within the disk control device; and a second coupling unit for connecting the internal coupling of each disk control unit to transfer data between a plurality of the disk control devices.