Methods and systems for selecting block sizes for use with disk arrays
US6591339B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1999 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Sep 8, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/415
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is related to methods and systems for improving the read performance of a drive array, such as a RAID 5 array, having an “n” number of drives so that the read performance is greater than (n−1) times that of an independent single drive. Formatting information for each of at least three drives is received. A first parity block size for use with corresponding first zones of the at least three drives is selected. A second parity block size different than the first parity block size is selected for use with corresponding second zones of the at least three drives. The first and the second parity block sizes are selected to increase the read performance from the drive array based on at least a portion of the formatting information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.