System, method and computer program product for deduplication aware quality of service over data tiering
US9298385B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 12, 2013 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Dec 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for ensuring compliance of service levels corresponding to file-system operations in a deduplicated, tiered storage system comprising storage devices of varying performance levels, each of the performance levels being associated with at least one service level, includes performing a deduplication remapping operation so that a data item corresponding to a higher service level, is stored as an original on a higher performance storage tier while duplicates of the data item corresponding to a lower service level exist in lower performance storage tier at least in part as pointers to the data item on the higher performance storage tier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.