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:
Jul. 07, 2015
Filed:
Apr. 21, 2011
Applicants:
Kazuhiko Ikeuchi, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Inventors:
Kazuhiko Ikeuchi, Kawasaki, JP;
Hidejirou Daikokuya, Kawasaki, JP;
Chikashi Maeda, Kawasaki, JP;
Norihide Kubota, Kawasaki, JP;
Assignee:
FUJITSU LIMITED, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/16 (2006.01); G06F 12/08 (2006.01); G06F 3/06 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0868 (2013.01); G06F 3/0613 (2013.01); G06F 3/0632 (2013.01); G06F 3/0635 (2013.01); G06F 3/0685 (2013.01); G06F 3/0689 (2013.01); G06F 11/201 (2013.01); G06F 2212/261 (2013.01);
Abstract
A disk array device includes, a cache memory, a plurality of types of disk drives of which data transfer capacity are different, redundant transmission paths that are data transfer paths between the cache memory and the disk drives, and a controller to divide the disk drives into two groups based on the data transfer capacity and allocate each of the two groups to each of the redundant transmission paths when the disk drives have three types.