Storage system, apparatus, and method for failure recovery during unsuccessful rebuild process
US8943358B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 2012 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Mar 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2211/1061
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage control apparatus manages a plurality of storage devices which belong to a RAID Logical Unit (RLU) such that data is made redundant between different storage devices, where RAID stands for Redundant Arrays of Independent Disks. If a first storage device fails, a rebuild controller executes a rebuild process to store the same data as recorded in the first storage device in a spare storage device. When the rebuild controller executing the rebuild process has failed in reading out data from a second storage device, a data recovery controller restarts the first storage device, and reads out data to be stored in the spare storage device from the restarted first storage device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.