Efficient method to find changed data between indexed data and new backup
US11625304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2019 |
| Grant date | Apr 11, 2023 |
| Priority date | — |
| Expiry date | Oct 27, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1453
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus, method, and system for updating a file index in a search engine in a data backup system to reflect file changes introduced in a new backup is disclosed. The operations comprise: generating a first external file, the first external file comprising file hashes for files already indexed in a file index in a search engine of a data backup storage system that are not associated with a deleted status; generating a second external file, the second external file comprising file hashes for files in a new backup; determining one or more file changes introduced in the new backup based on a comparison between the first external file and the second external file; and updating the file index in the search engine to reflect the one or more file changes introduced in the new backup.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.