Managing capacity of a thinly provisioned storage system
US9436399B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 23, 2015 |
| Grant date | Sep 6, 2016 |
| Priority date | — |
| Expiry date | Sep 23, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/08
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A thinly provisioned storage system detects whether physical storage capacity is available when there is a request to allocate storage capacity, prior to data being written to the storage system. In particular, at the time when the file system allocates storage, such as when creating a file or performing an extending write (append) operation, allocating storage to an unallocated region of a sparse file, defragmenting a file, and the like, a storage system can verify that actual physical storage capacity is available. Thus, if there is insufficient actual physical capacity at the time when a storage allocation is attempted, then an error message can be sent and remedial action can be taken.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.