Archiving logs with snapshots for data recovery
US7792802B1 · kind B1 · utility
32Cited by
4References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 2, 2007 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | Oct 22, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for archiving a log for a data storage system includes the steps of logging host inputs/outputs to the log, creating a snapshot of the log when it is full, resetting a next write offset to the start of the log after the snapshot is created while continuing the logging to the log, performing copy-on-write of the log to the snapshot, and archiving the snapshot to an archived log.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.