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. 13, 2018
Filed:
Oct. 27, 2016
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Yasuhiro Ogasawara, Fujisawa, JP;
Hidetoshi Nishi, Nagano, JP;
Shigeru Akiyama, Kawasaki, JP;
Tsukasa Matsuda, Kawasaki, JP;
Tatsuya Yanagisawa, Kawasaki, JP;
Hidefumi Kobayashi, Yokohama, JP;
Satoshi Yazawa, Kawasaki, JP;
Atsushi Igashira, Yokohama, JP;
Wataru Iizuka, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A storage system includes control devices and a second processor. The second processor determines a number of abnormal batteries when an abnormality has occurred in a first battery. The second processor assigns a second cache currently assigned to a second control device associated with the first battery to a first control device when the number is smaller than a threshold. The second processor assigns a mirror cache currently assigned to the second control device to a third control device when the number is smaller than the threshold. The second processor instructs the first control device to control write to a first storage device associated with a first cache by using the first cache. Data of the first cache is mirrored to the mirror cache. The second processor instructs the first control device to control write to a second storage device associated with the second cache by using the second cache.