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.

Date of Patent:
Sep. 08, 2015

Filed:

Oct. 12, 2012
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Ryota Tsukahara, Kawasaki, JP;

Norihide Kubota, Kawasaki, JP;

Atsushi Igashira, Yokohama, JP;

Kenji Kobayashi, Kawasaki, JP;

Hidejirou Daikokuya, Kawasaki, JP;

Kazuhiko Ikeuchi, Kawasaki, JP;

Takeshi Watanabe, Kawasaki, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/08 (2006.01); G06F 11/10 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0804 (2013.01); G06F 3/061 (2013.01); G06F 3/064 (2013.01); G06F 3/0689 (2013.01); G06F 11/1076 (2013.01); G06F 12/0868 (2013.01); G06F 2211/1057 (2013.01); G06F 2211/1059 (2013.01); G06F 2212/262 (2013.01);
Abstract

A disk array device includes: a plurality of disk devices including a strip that stores divided data or a parity; a control device to divide the stripe for each of the plurality of disk devices into the divided data having a size of the strip and write the divided data; and a memory to store new data that corresponds to the divided data stored in the strip, wherein the control device detects whether or not the new data is discrete and performs a first write operation or a second write operation when the new data is discrete.


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