Reclamation of thin provisioned disk storage
US8239648B2 · kind B2 · utility
6Cited by
0References
20Claims
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Assignee
Inventors
Key dates
| Filing date | Apr 13, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Jun 2, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0665
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A thin provisioned storage system may have a file system manager that presents a logical storage system to a user and a storage management system that manages physical storage devices. When a block of data is freed at the logical layer, the file system manager may identify the freed block and send a command to the physical layer. The physical layer may identify the corresponding physical block or blocks and free those blocks on the physical layer. The storage management system may use a table to manage the location of blocks of data across multiple physical storage devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.