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:
Nov. 17, 2015
Filed:
May. 16, 2013
Fujitsu Limited, Kawasaki-shi, Kanagawa, JP;
Omar Hame Thielo, Kawasaki, JP;
Yuichi Sakagami, Sagamihara, JP;
Yukihiro Yoshiya, Yokohama, JP;
Atsuhiro Otaka, Kawasaki, JP;
Kazuma Takatsu, Yokohama, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A storage system that functions as one or more logical volumes includes a control unit and a plurality of storage units connected to the control unit, wherein the control unit includes a memory that stores allocation status information that indicates status of allocation of the plurality of storage units to a logical volume; an access request responding unit that controls at least one storage unit among the plurality of storage units in response to a request for access to each logical volume from a host device; and a power saving controller that identifies an unused storage unit not allocated to any logical volume among the plurality of storage units on the basis of the allocation status information and performs power saving control on the identified unused storage unit.