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:
Sep. 09, 2008
Filed:
Oct. 07, 2005
Toru Takahashi, Kamakura, JP;
Tatsundo Aoshima, Yokohama, JP;
Nobuo Beniyama, Yokohama, JP;
Takaki Kuroda, Machida, JP;
Toru Takahashi, Kamakura, JP;
Tatsundo Aoshima, Yokohama, JP;
Nobuo Beniyama, Yokohama, JP;
Takaki Kuroda, Machida, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention achieves data relocation in accordance with a user's policies, in an environment where a plurality of storage devices are combined. The volumes belonging to storage devices A-D are managed virtually integrally. A host recognizes a plurality of storage devices A-D as a single virtual storage device. The user is able to group the volumes belonging to the storage system, as a plurality of storage layers-. For example, storage layercan be defined as a high-reliability layer, storage layer, as a low-cost layer, and storage layer, as an archive layer. Each storage layer is constituted by a group of volumes corresponding to respective policies (high reliability, low cost, archiving). The user designates volumes to be moved Vand V, in group units, and indicates a storage layer forming a movement destination, whereby the data is relocated.