Method, data storage system, and computer-readable recording medium for disk array data distribution
US10705744B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 21, 2018 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Aug 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0679
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method, a data storage system, and a computer-readable recording medium for disk array data distribution are proposed. The method includes the following steps. The space of a disk array composed of multiple flash storage devices is divided into multiple RAID extents with a same data distribution pattern, where each of the RAID extents includes a first region having multiple first stripes and first strips and also a second region having multiple second stripes and second strips. The first strips in each of the first stripes are evenly distributed among the flash storage devices in a first rotation pattern, and the second strips in each of the second stripes are unevenly distributed among the flash storage devices in a second rotation pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.