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:
Jun. 14, 2016
Filed:
Sep. 25, 2013
Hitachi, Ltd., Tokyo, JP;
Yuki Naganuma, Yokohama, JP;
Hirokazu Ikeda, Yamato, JP;
Nobuhiro Maki, Yokohama, JP;
Masayasu Asano, Yokohama, JP;
Shinichiro Kanno, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a storage system, a storage apparatus A having a first poolincluding segments as unit storage areas and a storage apparatus B having a second poolhaving the same configuration are communicably connected to each other. In the storage system, an external volume identifier is associated with a logical volumeincluded in the first pool, the external volume identifier being used by a controllerin the storage apparatus B to identify and manage the logical volumeas an external volumethat is a virtual volume in the storage apparatus B. Moreover, a volume identifierof the logical volumeincluded in the first poolis rewritten into the external volume identifier in order to enable the storage apparatus B to utilize the logical volumecreated from the first pool