Recovery mechanism for low latency metadata log
US10191812B2 · kind B2 · utility
3Cited by
2References
25Claims
0Family size
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Key dates
| Filing date | Mar 30, 2017 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Jun 22, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/7203
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage server includes an IO controller, a management controller and physical drives. The IO controller generates multiple metadata updates and writes a cache entry that includes the multiple metadata updates to a first cache in memory of the management controller. The IO controller additionally writes a copy of the cache entry to a second cache in a memory of the IO controller and increments a commit pointer in the first and second caches to indicate that the metadata updates are committed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.