Multitier deduplication systems and methods
US8898114B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 25, 2011 |
| Grant date | Nov 25, 2014 |
| Priority date | — |
| Expiry date | Aug 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/83
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Multitier deduplication can reduce the amount of bandwidth and storage resources used during deduplication. In certain embodiments, the system can determine if a data block is stored in a first archive data storage. If so, the system can skip the data block. If not, the system can determine if the data block is stored or identified in a second archive data storage. In various implementations, the first archive data storage can be local to the system and the second archive data storage can be a global archive that may be remote from the system. The system can create a map of a plurality of backups stored at the first archive enabling the system to quickly check multiple archives. The multitier data deduplication can filter out inactive data blocks during or before performing the deduplication process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.