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. 16, 2016
Filed:
Aug. 10, 2012
Yasuhiro Ogasawara, Fujisawa, JP;
Shigeru Akiyama, Kawasaki, JP;
Tatsuya Yanagisawa, Kawasaki, JP;
Tsukasa Matsuda, Kawasaki, JP;
Kosuke Ota, Kawasaki, JP;
Hitoshi Kosokabe, Kawasaki, JP;
Yasuhiro Ogasawara, Fujisawa, JP;
Shigeru Akiyama, Kawasaki, JP;
Tatsuya Yanagisawa, Kawasaki, JP;
Tsukasa Matsuda, Kawasaki, JP;
Kosuke Ota, Kawasaki, JP;
Hitoshi Kosokabe, Kawasaki, JP;
FUJITSU LIMITED, Kawasaki, JP;
Abstract
A determining unit selects one storage device each from storage devices of an external storage apparatus and storage devices of a storage apparatus to which the determining unit belongs. At this point, based on a copy request, the determining unit preferentially selects, within each of the external storage apparatus and the storage apparatus, a storage device including a larger number of logical volumes (LVs) which belong to copy unexecuted LV pairs compared to other storage devices therein. Further, the determining unit determines, as a copy execution target, a copy unexecuted LV pair in which a LV provided in one of the selected two storage devices is a copy source and a LV provided in the other storage device is a copy destination. A copy unit copies data stored in the copy source LV, which belongs to the determined LV pair, to the copy destination LV of the LV pair.