发明名称 |
Method and apparatus to recover data in a continuous data protection environment using a journal |
摘要 |
In one aspect, a method to recover data includes annotating metadata entries in a journal to indicate changes by an application to an object stored in a continuous data protection environment. Each entry of the metadata corresponds to one of a unique group of DO stream data blocks or a unique group of UNDO stream data blocks. The method also includes determining a version of the object that meets criteria by searching the annotated entries and obtaining the version of the object that meets the criteria. In another aspect, a method to recover data includes receiving criteria to recover an object, determining a version of the object that meets the criteria by searching point-in-time images using a DO stream and an UNDO stream and obtaining the version of the object that meets the criteria. |
申请公布号 |
US7860836(B1) |
申请公布日期 |
2010.12.28 |
申请号 |
US20070964216 |
申请日期 |
2007.12.26 |
申请人 |
EMC (BENELUX) B.V., S.A.R.L. |
发明人 |
NATANZON ASSAF;DRUKH EVGENY;AHAL SHLOMO |
分类号 |
G06F9/50;G06F3/06 |
主分类号 |
G06F9/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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