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. 28, 2012
Filed:
Apr. 26, 2011
Nobuhiro Maki, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Kazuhiko Watanabe, Yokohama, JP;
Masaaki Hosouchi, Zama, JP;
Nobuhiro Maki, Yokohama, JP;
Kenichi Oyamada, Yokohama, JP;
Kazuhiko Watanabe, Yokohama, JP;
Masaaki Hosouchi, Zama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A data storing system include a first and second storage system, each including a cache memory and a disk drive, and a third storage system coupled to the first and second storage systems and including a third disk drive to provide a third logical volume based on the third disk drive. First and second write data is transmitted from the first storage system to the second storage system according to copy pair management information. A certain storage system, which is one of the first and second storage systems, destages the second write data from a cache memory of the certain storage system to the third logical volume in the third storage system according to a volume and storage conversion table in the certain storage system.