Resource reservation for storage system metadata updates
US9965196B2 · kind B2 · utility
2Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Nov 14, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/1727
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Storage systems track free blocks using various data structures and maps. For instance, free block maps may contain data blocks with values that indicate whether a block is free or not. When an operation results in a block being freed, the relevant data block in the maps must be written during an I/O operation to update the value. Large numbers of updates my occur after an operation that frees a large numbers of blocks, which can lead to performance degradation. Accordingly, disclosed are systems and methods for deferring updating of free block data tracking structures using logs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.