Management of write cache using stride objects
US8332589B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2010 |
| Grant date | Dec 11, 2012 |
| Priority date | — |
| Expiry date | Feb 11, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Method, system, and computer program product embodiments for, in a computing storage environment for destaging data from nonvolatile storage (NVS) to a storage unit, identifying working data on a stride basis by a processor device are provided. A multi-update bit is established for each stride in a modified cache. The multi-update bit is adapted to indicate at least one track in a working set. A schedule of destage scans is configured based on a plurality of levels of urgency. A destage operation is performed based on at least one of a number of strides examined by the destage scans, whether the multi-update bit is set, and whether an emergency level of the plurality of levels of urgency is active.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.