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:
Feb. 07, 2017

Filed:

Mar. 26, 2015
Applicant:

Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;

Inventors:

Yuma Tamura, Kawasaki, JP;

Hironori Saito, Yokohama, JP;

Assignee:

FUJITSU LIMITED, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 12/02 (2006.01); G06F 11/10 (2006.01); G11C 16/34 (2006.01); G11C 29/44 (2006.01); G11C 29/00 (2006.01); G06F 13/00 (2006.01); G06F 13/28 (2006.01); G11C 29/50 (2006.01); G11C 16/20 (2006.01); G11C 29/04 (2006.01);
U.S. Cl.
CPC ...
G06F 12/0246 (2013.01); G06F 11/1076 (2013.01); G11C 16/349 (2013.01); G11C 29/44 (2013.01); G11C 29/82 (2013.01); G06F 2212/1032 (2013.01); G06F 2212/7205 (2013.01); G06F 2212/7208 (2013.01); G06F 2212/7211 (2013.01); G11C 16/20 (2013.01); G11C 2029/0409 (2013.01); G11C 2029/4402 (2013.01); G11C 2029/5004 (2013.01);
Abstract

A storage control device that controls a solid state drive group including two or more solid state drives sharing data storage includes a detector that detects a wear state of each of the solid state drives, a separation controller that separates a solid state drive having a wear value, which represents a wear state, exceeding a first threshold among the solid state drives, and an enlargement controller that, when detecting a solid state drive having a wear value, which represents a wear state, exceeding a second threshold less than the first threshold among the solid state drives in the solid state drive group, enlarges a difference in a wear value, which represents a wear state, between the solid state drive having the wear value exceeding the second threshold and a remainder of the solid state drives.


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