- 专利标题： Data restoring method and an apparatus using journal data and an identification information
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申请号： US11637043申请日： 2006-12-12
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公开(公告)号： US20070088977A1公开(公告)日： 2007-04-19
- 发明人: Yoshiaki Eguchi , Kazuhiko Mogi , Yasutomo Yamamoto , Takashi Oeda , Kouji Arai
- 申请人： Yoshiaki Eguchi , Kazuhiko Mogi , Yasutomo Yamamoto , Takashi Oeda , Kouji Arai
- 专利权人： Hitachi, Ltd.
- 当前专利权人： Hitachi, Ltd.
- 优先权： JP2003-041986 20030220
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
A host and a storage system each keep a shared identifier indicating a state of a system. The storage system acquires, at update of data, a data pair including data for a change through processing of the host and data before the update. The storage system relates the data pair to a shared identifier. When the host indicates an identifier, the storage system restores data using the data pair.
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