File system independent content aware cache
US8312471B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 26, 2010 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Apr 28, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/465
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A server supporting the implementation of virtual machines includes a local memory used for caching, such as a solid state device drive. During I/O intensive processes, such as a boot storm, a “content aware” cache filter component of the hypervisor of the server first accesses a cache structure in a content cache device to determine whether data blocks have been stored in the cache structure prior to requesting the data blocks from a networked disk array via a standard I/O stack of the hypervisor. The content aware cache filter component is implemented in an I/O virtualization layer of the standard I/O stack that sits above a file system layer of the standard I/O stack, such that any file system protocol may be implemented in the file system layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.