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. 03, 2009
Filed:
Dec. 27, 2005
Hajime Mori, Yokohama, JP;
Takashi Amano, Yokohama, JP;
Hajime Mori, Yokohama, JP;
Takashi Amano, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
To provide a technique by which, if the number of active disk groups in a storage device is restricted, an appropriate logical volume in the storage device can be used. A management apparatus manages a storage device provided externally. The management apparatus obtains management data indicating which of a plurality of disk groups included in the storage device is active, from the storage device. In addition, the management apparatus executes predetermined processing with reference to the management data in order to utilize a logical volume belonging to a disk group in the storage device while ensuring that the number of active disk groups in the storage device does not exceed an upper limit value.