Invention Grant
US07783848B2 Method and apparatus for backup and recovery using storage based journaling
有权
使用基于日志记录的备份和恢复的方法和装置
- Patent Title: Method and apparatus for backup and recovery using storage based journaling
- Patent Title (中): 使用基于日志记录的备份和恢复的方法和装置
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Application No.: US11802278Application Date: 2007-05-22
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Publication No.: US07783848B2Publication Date: 2010-08-24
- Inventor: Kenji Yamagami
- Applicant: Kenji Yamagami
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Mattingly & Malur, P.C.
- Main IPC: G06F12/02
- IPC: G06F12/02
Abstract:
A storage system maintains a journal of journal entries and at lease 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.
Public/Granted literature
- US20070220221A1 Method and apparatus for backup and recovery using storage based journaling Public/Granted day:2007-09-20
Information query
