Storage apparatus and storage apparatus control method
US10013322B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Jul 3, 2018 |
| Priority date | — |
| Expiry date | May 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/805
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage controller stores, for each of a plurality of storage devices, a usable capacity, which is a capacity usable by the storage controller in a logical storage area, configures a first RAID group using a first storage device group among the plurality of storage devices, and allocates, on the basis of a request from a host computer, one of a plurality of pages of the logical storage area in the first RAID group to a virtual volume. The storage controller reduces, when receiving first failure information indicating a failure in a first storage device in the first storage device group from the first storage device, a usable capacity of the first storage device on the basis of the first failure information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.