Compound storage system and storage control method to configure change associated with an owner right to set the configuration change
US9250809B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Sep 29, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0689
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One or more storage systems are connected to one or more storage boxes comprising multiple storage devices. Multiple storage areas provided by one or more storage boxes include an allocated area, which is a storage area that is allocated to a virtual volume, and an empty area, which is a storage area that is not allocated to any logical volume. Multiple owner rights corresponding to multiple storage areas are set in one or more storage systems. A storage system having an empty area owner right changes an empty area to the allocated area by allocating the empty area. In a case where a configuration change (a relative change in the number of storage boxes with respect to the number of storage systems) is performed, a first storage system that exists after the configuration change sets, in the first storage system, either more or fewer owner rights than the owner rights, which have been allocated to the first storage system before the configuration change.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.