Efficient incremental backups using a change database
US7913044B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 2, 2006 |
| Grant date | Mar 22, 2011 |
| Priority date | — |
| Expiry date | Oct 18, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1451
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Efficient incremental backups using a change database is disclosed. Based at least in part on a file attribute it is determined that a file has changed since a previous backup. Change data is stored in a data structure additional to a file system with which a file is associated. Change data indicates the file has changed since the previous backup. The file attribute is configured to be reset, each time a file is backed up, to a value indicating the file has not changed. Storing the change data enables a backup operation performed subsequent to the file attribute being reset to determine that the file has changed since the previous backup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.