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. 15, 2016
Filed:
Jan. 25, 2011
Applicant:
Kentarou Yuasa, Kawasaki, JP;
Inventor:
Kentarou Yuasa, 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 1/30 (2006.01); G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
G06F 12/08 (2013.01); G06F 1/30 (2013.01); G06F 1/32 (2013.01); G06F 12/0804 (2013.01); G06F 12/0871 (2013.01); G06F 2212/2228 (2013.01); Y02B 60/1225 (2013.01);
Abstract
According to an aspect of the embodiment, a cache controller sets, when power supply capacity information is acquired at an update period, a size of a permitted area in which the writing of dirty data is permitted and a size of an inhibited area in which the writing of the dirty data is inhibited in a cache memory, according to the power supply capacity information. The cache controller stores the dirty data or read data read out from a disk array in the permitted area, or stores only the read data in the inhibited area.