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:
Dec. 23, 2014
Filed:
May. 11, 2010
Takeshi Shigemura, Odawara, JP;
Koji Iwamitsu, Odawara, JP;
Takeshi Shigemura, Odawara, JP;
Koji Iwamitsu, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention achieves appropriate power saving of the storage systems in accordance with the user's needs. In a storage systemincluding a storage apparatuscomprising a thin provisioning function and a management device, the management devicereceives specification of a storage poolas a power saving target and the specification of a power saving mode from a user and, when receiving the specification of prioritizing host access, selects the storage resource (RAID group) allocated to the storage poolpreferentially in ascending order of access frequency from the host computeruntil a sum of a reduced amount of power saving exceeds the target value or, when receiving the specification of prioritizing power saving, selects the storage resources allocated to the storage poolpreferentially in descending order of power consumption until a sum of a reduced amount of power consumption exceeds a target value, and makes the power saving function of the selected storage resources operate.