Method and apparatus for maintaining data consistency in raid
US5859965A · kind A · utility
18Cited by
5References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 17, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Dec 17, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for storing associated data in a computing system having two or more storage devices arranged in a RAID configuration. The storage devices have a prewrite area for pre-storage of the data, and data region for persistent storage of the data. A scoreboard memory structure is created for monitoring the state of the prewrite area, and data in the prewrite area is conditionally invalidated based upon the information contained in the scoreboard memory structure. By conditionally invalidating the prewrite data, the write performance of the RAID storage system is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.