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
  • 申请号: US13551892
    申请日: 2012-07-18
  • 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
METHOD AND APPARATUS FOR BACKUP AND RECOVERY USING STORAGE BASED JOURNALING
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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