- 专利标题： Apparatus and storage system for controlling acquisition of snapshot
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申请号： US12002342申请日： 2007-12-17
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公开(公告)号： US07461293B2公开(公告)日： 2008-12-02
- 发明人: Hiroshi Ohno , Hideo Tabuchi , Akinobu Shimada , Masataka Innan
- 申请人： Hiroshi Ohno , Hideo Tabuchi , Akinobu Shimada , Masataka Innan
- 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： Reed Smith LLP
- 代理商 Stanley P. Fisher, Esq.; Juan Carlos A. Marquez, Esq.
- 优先权： JP2003-281759 20030729
- 主分类号： G06F11/00
- IPC分类号： G06F11/00
摘要：
A DBMS performs a checkpoint process for maintaining consistency of data. A snapshot acquisition control program detects the checkpoint process externally to the DBMS and creates a snapshot in an external storage according to the timing of the checkpoint. Correspondence between checkpoints and snapshots is maintained in a CP-SH correspondence management table to make it possible to restore in a short time data at the time of an arbitrary checkpoint.
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