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:
May. 05, 2009
Filed:
Nov. 22, 2005
Akira Deguchi, Yokohama, JP;
Takashige Iwamura, Yokohama, JP;
Yasutomo Yamamoto, Sagamihara, JP;
Tetsuya Maruyama, Yokohama, JP;
Akira Deguchi, Yokohama, JP;
Takashige Iwamura, Yokohama, JP;
Yasutomo Yamamoto, Sagamihara, JP;
Tetsuya Maruyama, Yokohama, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A first storage system comprises an information processing device and a first volume, and is connected to an information processing device. A second storage system comprises a second volume and is connected to the first storage system. The second storage system performs power supply control relating to the second volume in cooperation with a remote copy, such that the remote copy and the power supply control are performed efficiently. Thus, a remote copy function performs power supply control of an HDD comprising a secondary volume of a remote copy pair, to match data copy status (such as stopping data copy to the secondary volume, or differential copying). Thus, longevity of the HOD and lower use of active power of a storage system can be realized.