Mirroring metadata in a continuous data protection environment
US8271447B1 · kind B1 · utility
148Cited by
11References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2010 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Nov 23, 2030 |
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.