File system snapshot data management in a multi-tier storage environment
US9613040B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2016 |
| Grant date | Apr 4, 2017 |
| Priority date | — |
| Expiry date | Mar 24, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/185
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method for managing data includes receiving a request to write data to a file block on a multi-tier file system. A first logical block is associated with the file block. The method also includes determining whether the request is a first write request for the file block after creation of a snapshot of the file block. Moreover, the method includes determining an access request count for the first logical block prior to creation of the snapshot by retrieving the access request count for the first logical block from a snapshot data table accessible to an automatic tiering module. Other methods for managing data are presented in accordance with other embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.