Data recovery method and apparatus
US6968347B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Jan 11, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99953
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for data recovery in a system involving a first data store acting as a standard volume and a physical moving mirror data store that operates in a first mode to be synchronized and in a second, isolated mode. A third physical mirror data store synchronizes with the second data store in its second operating mode. In response to a command to establish a third or reverse split operating mode, the data to be transferred in response to that command is identified. Copying of the identified data then commences from the third data store to the second data store to recover any data that may have been corrupted in the second data store.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.