发明授权
- 专利标题： Data duplication control method
- 专利标题（中）： 数据复制控制方法
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申请号： US11819533申请日： 2007-06-28
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公开(公告)号： US07937546B2公开(公告)日： 2011-05-03
- 发明人: Yuri Hiraiwa , Taro Inoue , Sumio Goto
- 申请人： Yuri Hiraiwa , Taro Inoue , Sumio Goto
- 申请人地址： JP Tokyo
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 当前专利权人地址： JP Tokyo
- 代理机构： Brundidge & Stanger, P.C.
- 优先权： JP2003-423464 20031219
- 主分类号： G06F12/00
- IPC分类号： G06F12/00 ; G06F13/00 ; G06F13/28 ; G06F7/00 ; G06F17/00
摘要：
When there is a change in a group of volumes managed by a host computer, data duplication processing is immediately carried out against the changed volume. The host computer includes a volume-managing portion, a data duplication-controlling portion which executes the data duplication of data stored in a volume in a main data center, and a data duplication storing portion which stores data necessary for the data duplication. The data duplication-controlling portion compares data held by the volume-managing portion with the data in the data duplication storing portion, and updates the data in the data duplication storing portion based on the data held by the volume-managing portion.
公开/授权文献
- US20070255916A1 Data duplication control method 公开/授权日：2007-11-01