Balancing allocated cache pages among storage devices in a flash cache
US9933952B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2016 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | Apr 26, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7205
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described herein are techniques for use in balancing allocated cache pages among storage devices in a flash cache. The techniques comprise determining an expected number of allocated cache pages in connection with a non-volatile storage device that forms at least part of a flash cache. The techniques also comprise performing a comparison between the expected number of allocated cache pages and an actual number of allocated or free cache pages in connection with the non-volatile storage device. The techniques further comprise selecting, based on the comparison, a free cache page in connection with the non-volatile storage device to allocate as a cache page.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.