Invention Grant
- Patent Title: Mirroring metadata in a continuous data protection environment
- Patent Title (中): 在连续数据保护环境中镜像元数据
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Application No.: US12818236Application Date: 2010-06-18
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Publication No.: US08271447B1Publication Date: 2012-09-18
- Inventor: Assaf Natanzon , Saar Cohen , Sharon Vitek , Ariel Kulik
- Applicant: Assaf Natanzon , Saar Cohen , Sharon Vitek , Ariel Kulik
- Applicant Address: BM Hamilton
- Assignee: EMC International Company
- Current Assignee: EMC International Company
- Current Assignee Address: BM Hamilton
- Agency: Daly, Crowley, Mofford & Durkee, LLP
- Main IPC: G06F7/00
- IPC: G06F7/00 ; G06F17/30

Abstract:
In one aspect, a method includes providing data protection to data in a first volume at a first data protection appliance by storing a copy of the data in a second volume using a second data protection appliance, tracking changes between data locations in the first volume and the second volume using a delta marking stream (DMS) and receiving, at the first data protection appliance, metadata. The metadata is intended to be committed to the DMS. The method further includes mirroring the metadata at a third data protection appliance.
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