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:
Aug. 27, 2013
Filed:
Dec. 03, 2010
Norifumi Nishikawa, Machida, JP;
Hirokazu Ikeda, Yamato, JP;
Yuki Naganuma, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The configuration of volumes provided by a plurality of storage apparatuses with an external connection function is optimized. By associating a virtual volume provided to the host computer with a real volume of another storage apparatus other than their own, the plurality of storage apparatuses manage the real volume of the other storage apparatus as their own real volume, and a management computer comprises a detection unit which detects a correspondence relationship between the virtual volume of one storage apparatus among the plurality of storage apparatuses and the real volume of the one storage apparatus or of the other storage apparatus; and a modification unit which, if the real volume is added to any of the plurality of the storage apparatuses, modifies the correspondence relationship between the virtual volume and the real volume associated with the virtual volume, according to the correspondence relationship detected by the detection unit.