Invention Grant
- Patent Title: Information system and data transfer method
- Patent Title (中): 信息系统和数据传输方式
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Application No.: US13209560Application Date: 2011-08-15
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Publication No.: US08386839B2Publication Date: 2013-02-26
- Inventor: Yasuo Watanabe , Yasutomo Yamamoto , Kenta Ninose , Yoshiaki Eguchi , Takashige Iwamura , Hisao Homma
- Applicant: Yasuo Watanabe , Yasutomo Yamamoto , Kenta Ninose , Yoshiaki Eguchi , Takashige Iwamura , Hisao Homma
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Brundidge & Stanger, P.C.
- Priority: JP2006-293485 20061030; JP2007-085792 20070328
- Main IPC: G06F11/00
- IPC: G06F11/00

Abstract:
Availability of an information system including a storage apparatus and a computer is improved. First and second storage apparatuses execute remote copy of copying data written into a first primary volume from the computer to a second primary volume, at least one of the first and second storage apparatuses executes local copy of copying the data written into the first or second primary volume in a self-storage apparatus to the corresponding first or second secondary volume, and the computer switches the destination of a write request of the data from the first storage apparatus to the second storage apparatus in case of a failure occurring in the first storage apparatus.
Public/Granted literature
- US20110302447A1 INFORMATION SYSTEM AND DATA TRANSFER METHOD Public/Granted day:2011-12-08
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