Adjustable error sensitivity for taking disks offline in a mapped RAID storage array
US10346247B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2017 |
| Grant date | Jul 9, 2019 |
| Priority date | — |
| Expiry date | Aug 19, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/85
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is performed by an extent pool manager running on a data storage device. It is configured to manage assignment of disk extents provided by a pool of drives to a set of mapped RAID extents. The method includes (a) receiving an indication that a particular drive has triggered an end-of-life (EOL) condition based on an error count of that drive and a standard sensitivity setting, (b) in response to receiving the indication, changing a sensitivity setting of other drives to be less sensitive than the standard sensitivity setting, and (c) remapping disk extents from the particular drive to the other drives of the pool while the other drives continue operation using the changed sensitivity setting. An apparatus, system, and computer program product for performing a similar method are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.