System and method for scalable reference management in a deduplication based storage system
US8392376B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 3, 2010 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Jan 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1469
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for managing a resource reclamation reference list at a coarse level. A storage device is configured to store a plurality of storage objects in a plurality of storage containers, each of said storage containers being configured to store a plurality of said storage objects. A storage container reference list is maintained, wherein for each of the storage containers the storage container reference list identifies which files of a plurality of files reference a storage object within a given storage container. In response to detecting deletion of a given file that references an object within a particular storage container of the storage containers, a server is configured to update the storage container reference list by removing from the storage container reference list an identification of the given file. A reference list associating segment objects with files that reference those segment objects may not be updated response to the deletion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.