Data storage cache system shutdown scheme
US7062675B1 · kind B1 · utility
66Cited by
11References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | Jun 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F12/0866
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a storage system including a write-back cache, dirty data can be flushed from the cache while a controller continues to service host I/O requests. A controller is capable of flushing all the dirty data in the cache to a storage device in response to an indication to do so, such as an indication of impending failure. The controller is further capable of responding to I/O requests from the host during the flushing of the dirty data. In particular, the controller is capable of responding to write requests from the host system by storing data on the storage device during the flushing of the dirty data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.