Facilitation of simultaneous storage initialization and data destage
US8352691B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2010 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Mar 26, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Various embodiments for storage initialization and data destage in a computing storage environment are provided. At least a portion of data on a storage device is initialized using a background process, while one of simultaneously and subsequently destaging the at least the portion of the data to the storage device using a foreground process is performed. A persistent metadata bitmap, adapted to indicate whether the at least the portion of the data has been initialized, is staged to cache, the cache operable in the computing storage environment. The background process maintains a volatile bitmap indicating a status of the initialization of the at least the portion of the data in direct correspondence to the metadata bitmap. As the background process initializes the at least the portion of the data, an applicable bit on the persistent metadata bitmap is cleared and a corresponding bit is set on the volatile bitmap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.