发明申请
US20120311227A1 INFORMATION STORAGE SYSTEM, SNAPSHOT ACQUISITION METHOD, AND DATA STORAGE MEDIUM
有权
信息存储系统，SNAPSHOT获取方法和数据存储介质
- 专利标题： INFORMATION STORAGE SYSTEM, SNAPSHOT ACQUISITION METHOD, AND DATA STORAGE MEDIUM
- 专利标题（中）： 信息存储系统，SNAPSHOT获取方法和数据存储介质
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申请号： US13142363申请日： 2011-06-02
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公开(公告)号： US20120311227A1公开(公告)日： 2012-12-06
- 发明人: Tomoya Anzai , Takahiro Nakano
- 申请人： Tomoya Anzai , Takahiro Nakano
- 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
- 国际申请： PCT/JP2011/003120 WO 20110602
- 主分类号： G06F12/02
- IPC分类号： G06F12/02 ; G06F12/16
摘要：
The information storage system of an aspect of the present invention includes a first differential data storage area which stores differential data of a higher volume from a first point of time to a second point of time, a lower snapshot manager which provides a lower snapshot at the second point of time of the higher volume, and a second differential data storage area which stores differential data of the higher volume after the second point of time. The higher snapshot manager acquires a plurality of generations of higher snapshots from the lower snapshot and the data in the first differential data storage area and acquires a plurality of generations of higher snapshots from the data of the higher volume and the data in the second differential data storage area.
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