File system snapshot data management in a multi-tier storage environment
US9323462B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2014 |
| Grant date | Apr 26, 2016 |
| Priority date | — |
| Expiry date | Nov 25, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/185
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a system includes a processor and logic configured to receive a request to write data to a file block on a multi-tier file system where a first logical block is associated with the file block, and when the request is the first write request for the file block after creation of the snapshot of the file block: create a second logical block, determine a measure of access requests to be directed to a logical block allocated for the snapshot versus a logical block allocated for new data on the file block, the logical block allocated for the snapshot and the logical block allocated for new data on the file block being uniquely chosen from: the first and second logical block, and send the measure of access requests to the automatic tiering module when so determined. Other systems, methods, and computer program products are described in more embodiments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.