Method, apparatus, and system for data deduplication
US10789210B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2017 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | Aug 28, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/067
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method, apparatus and system for data deduplication comprising setting, for a to-be-deduplicated data block, a pointer pointed to the to-be-deduplicated data block as a pointer pointed to a corresponding to-be-reserved data block, and setting a virtual pointer pointed to the to-be-deduplicated data block, cancelling, in response to an available storage capacity reaching a predetermined value, virtual pointers of respective to-be-deduplicated data blocks to be reclaimed, and reclaiming storage spaces of the respective to-be-deduplicated data blocks to be reclaimed, wherein when the virtual pointer pointed to the to-be-deduplicated data block is available, the to-be-deduplicated data block is directly accessed through the virtual pointer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.