Method and apparatus for mapping data in a heterogeneous disk array storage system
US6487636B1 · kind B1 · utility
106Cited by
2References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 24, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A RAID data storage system includes a heterogenous disk array coupled to a controller. The disk array provides a storage space that includes a first set of stipes each having at least “N” blocks and a second set of stripes each having less than “N” blocks. The controller can operate to map the storage space into redundant units by creating at least one redundant unit for storing data according to a mirror redundancy scheme. The redundant unit includes a block from the first set of stripes and a block from the second set of stripes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.