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:
May. 22, 2012
Filed:
Feb. 16, 2009
Applicants:
Masaru Tsukada, Odawara, JP;
Hidetoshi Sakaki, Odawara, JP;
Yoshihiro Asaka, Odawara, JP;
Inventors:
Assignee:
Hitachi, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
Provided are a storage apparatus and its power saving control method capable of performing sufficient power saving to multiple memory devices without deteriorating the response performance to a host system. If multiple logical volumes formed in disk drives configuring a parity group are in an offline status where a path group from the host computer is not set, a control processor sets the multiple disk drives of the parity group to a power saving status.