Mirroring metadata in a continuous data protection environment
US8438135B1 · kind B1 · utility
93Cited by
13References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 3, 2012 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jul 3, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2079
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.