Invention Application
US20050028022A1 Method and apparatus for data recovery system using storage based journaling
有权
用于基于存储的日志记录的数据恢复系统的方法和装置
- Patent Title: Method and apparatus for data recovery system using storage based journaling
- Patent Title (中): 用于基于存储的日志记录的数据恢复系统的方法和装置
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Application No.: US10931543Application Date: 2004-08-31
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Publication No.: US20050028022A1Publication Date: 2005-02-03
- Inventor: Takashi Amano
- Applicant: Takashi Amano
- Applicant Address: JP Tokyo
- Assignee: Hitachi, Ltd.
- Current Assignee: Hitachi, Ltd.
- Current Assignee Address: JP Tokyo
- Main IPC: G06F11/00
- IPC: G06F11/00
Abstract:
A storage system maintains a journal and a snapshot of one or more data volumes. Two journal entry types are maintained, an AFTER journal entry and a BEFORE journal entry. Two modes of data recovery are provided: “fast” recovery and “undo-able” recovery. A combination of both recovery modes allows the user to quickly recover a targeted data state.
Public/Granted literature
- US07398422B2 Method and apparatus for data recovery system using storage based journaling Public/Granted day:2008-07-08
Information query
