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:
Feb. 03, 2015
Filed:
Mar. 25, 2011
Applicants:
Toru Tanaka, Sagamihara, JP;
Noriko Nakajima, Machida, JP;
Takashi Amano, Yokohama, JP;
Yasunori Kaneda, Yokohama, JP;
Inventors:
Toru Tanaka, Sagamihara, JP;
Noriko Nakajima, Machida, JP;
Takashi Amano, Yokohama, JP;
Yasunori Kaneda, Yokohama, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0611 (2013.01); G06F 3/0647 (2013.01); G06F 3/065 (2013.01); G06F 3/0689 (2013.01); G06F 3/0623 (2013.01); G06F 3/0664 (2013.01); G06F 3/067 (2013.01);
Abstract
It is an object to use a storage region in an efficient manner and maintain a performance of a storage system. A volume group GRincludes reference volumes, andand source volumes, andthat derive from the reference volumes. Each of the volumes stores only the difference data from a volume that is a parent thereof. A volume that is a cause of a problem is moved or copied from a pool of the momentto other pool. A configuration of a volume group is modified.