Distributing mapped raid disk extents when proactively copying from an EOL disk
US10152254B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Dec 11, 2018 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/1076
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method performed in a Mapped RAID system includes: (a) in response to a source disk (SD) reaching EOL status: (1) copying a first source disk extent (DE) (belonging to a first RAID extent) from the SD to a first spare DE on a first destination disk and (2) copying a second source DE from the SD to a second spare DE (belonging to a second RAID extent) on a second destination disk, (b) in response to completely copying the first source DE from the SD to the first spare DE, mapping the first spare DE to belong to the first RAID extent in place of the first source DE, and (c) in response to completely copying the second source DE from the SD to the second spare DE, mapping the second spare DE to belong to the second RAID extent in place of the second source DE.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.