Mirroring data between redundant storage controllers of a storage system
US8375184B2 · kind B2 · utility
15Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Feb 12, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2097
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In one embodiment, the present invention includes canisters to control storage of data in a storage system including a plurality of disks. Each of multiple canisters may have a processor configured for uniprocessor mode and having an internal node identifier to identify the processor and an external node identifier to identify another processor with which it is to mirror cached data. The mirroring of cached data may be performed by communication of non-coherent transactions via the PtP interconnect, wherein the PtP interconnect is according to a cache coherent protocol. Other embodiments are described and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.