Determining differences between snapshots
US7100089B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2002 |
| Grant date | Aug 29, 2006 |
| Priority date | — |
| Expiry date | Jul 23, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/84
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is provided for synchronization of a backup copy of a volume of memory represented by a snapshot tree. The snapshot tree includes a plurality of snapshot volumes, each snapshot volume corresponding to a respective snapshot of the volume of memory. The method comprises the following: determining whether there are any exceptions in any of the snapshot volumes in the snapshot tree between and including the snapshot volumes corresponding to a first and a second snapshot; if there are exceptions, processing for the exceptions to synchronize the backup copy of the memory volume; otherwise, if there are no exceptions, ignoring the snapshot volumes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.