发明申请
US20120303914A1 METHOD AND APPARATUS FOR BACKUP AND RECOVERY USING STORAGE BASED JOURNALING
审中-公开
使用基于存储的日志进行备份和恢复的方法和装置
- 专利标题: METHOD AND APPARATUS FOR BACKUP AND RECOVERY USING STORAGE BASED JOURNALING
- 专利标题(中): 使用基于存储的日志进行备份和恢复的方法和装置
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申请号: US13551892申请日: 2012-07-18
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公开(公告)号: US20120303914A1公开(公告)日: 2012-11-29
- 发明人: Kenji Yamagami
- 申请人: Kenji Yamagami
- 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
- 主分类号: G06F12/16
- IPC分类号: G06F12/16
摘要:
A storage system maintains a journal of journal entries and at least one snapshot of one or more data volumes. By assigning a unique sequence number to journal and snapshot, it is easy to find a journal which can be applied to the snapshot. A technique is described for detecting an overflow condition of running out of journal space and recovering the journal space.
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