Snapshot assisted synchronous replication
US8806274B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2012 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Oct 8, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Technologies are described herein for providing snapshot-assisted synchronous replication between a first storage server and a second storage server. For example, a notification is received at the second storage server that the first storage server has resumed operations following a failure. At this time, the first storage server is in a first current state and the second storage server is in a second current state. Upon receiving the notification, a common snapshot is identified between the first storage server and the second storage server. Upon identifying the common snapshot, the first storage server is rolled back from the first current state to a previous state according to the common snapshot, and upon rolling back the first storage server from the first current state to the previous state, the first storage server and the second storage server are resynchronized using the common snapshot.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.