Garbage collection: timestamp entries and remove reference counts
US10409692B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2017 |
| Grant date | Sep 10, 2019 |
| Priority date | — |
| Expiry date | Jul 14, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1453
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment is related to a method for performing garbage collection at a backup system, comprising: determining an object that is present in a preceding backup but is no longer present in a present backup when or after the present backup is made; associating an indicator indicative of the preceding backup with the object in response to the determination that the object is no longer present in the present backup; determining whether the object is to be deleted from the backup system based on the indicator and a policy during garbage collection; and deleting the object in response to determining that the object is to be deleted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.