Targeted deduplication using server-side group fingerprints for virtual synthesis
US12174707B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2022 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | Aug 31, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1469
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of a targeted deduplication process that splits protected data into variable size segments, generates a fingerprint for each segment, and then combines fingerprints into groups to form group fingerprints. The group fingerprints are stored on and retrieved from a server by a client to identify duplicate data present on a server during the backup process on an “as needed” basis. The specific group fingerprints sent are based on knowledge of previous backups of the asset, either learned or provided as a hint from the backup application. Once it is known that a specific group fingerprint is present on the server, a virtual synthetic request can be generated instead of a traditional deduplication process. This enables virtual synthetic backups for applications that do not have sufficient knowledge of changed blocks from a previous backup to use the virtual synthetic operations on their own.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.