Managing global cache coherency in a distributed shared caching for clustered file systems
US9002912B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2013 |
| Grant date | Apr 7, 2015 |
| Priority date | — |
| Expiry date | Dec 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/604
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems. Methods, and Computer Program Products are provided for managing a global cache coherency in a distributed shared caching for a clustered file systems (CFS). The CFS manages access permissions to an entire space of data segments by using the DSM module. In response to receiving a request to access one of the data segments, a calculation operation is performed for obtaining most recent contents of one of the data segments. The calculation operation performs one of providing the most recent contents via communication with a remote DSM module which obtains the one of the data segments from an associated external cache memory, instructing by the DSM module to read from storage the one of the data segments, and determining that any existing contents of the one of the data segments in the local external cache are the most recent contents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.