发明授权
- 专利标题: Data restoring method and an apparatus using journal data and an identification information
- 专利标题(中): 数据恢复方法和使用日志数据和识别信息的装置
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申请号: US12258498申请日: 2008-10-27
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公开(公告)号: US07971097B2公开(公告)日: 2011-06-28
- 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
- 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: Mattingly & Malur, PC
- 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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