Method for packing and storing cached data in deduplicated cache system of a storage system
US9189402B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Oct 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/463
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for caching content in a cache memory device is disclosed. The method starts with receiving, at a cache manager, one or more data chunks to be cached in a cache memory device, where the one or more data chunks are retrieved from a persistent storage disk of a storage system in response to a read request of a region of a file. Then the one or more data chunks of a file extent is compressed using a predetermined compression algorithm, and the file extent is packed into a write-evict unit (WEU) maintained in a random-access memory (RAM) that has been open to store a plurality of file extents. In response to determining that the WEU is full, the cache manager writes the WEU from the RAM into the cache memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.