Optimizing destaging of data to physical storage devices
US9767021B1 · kind B1 · utility
8Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Sep 19, 2017 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/282
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described are techniques for destaging data. Write data for write operations are stored in cache page(s). The cache may be partitioned into cache pages and write data stored thereon may be marked as write pending denoting that write data needs to be written out to physical storage. Weight values may be determined for the cache pages in accordance with factors. A first cache page may be selected having a highest such weight value where the selected first cache page includes at least some write data marked as write pending. The write data of the selected first cache page may be destaged to physical storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.