Storage controller failover system
US9864663B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2016 |
| Grant date | Jan 9, 2018 |
| Priority date | — |
| Expiry date | Jul 9, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/604
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A storage controller failover system includes servers, storage controllers coupled to storage subsystems, and a switching system coupling the servers to the storage controllers. A storage controller configurations and storage controller caches for each of the storage controllers are stored in one or more database. A failure is detected of a first storage controller that has provided first storage communications along a first path between a first server and a first storage subsystem and, in response, a second storage controller that is configured to take over the first storage communications from the first storage controller is determined based on its second storage controller configuration. A first storage controller cache for the first storage controller is provided to the second storage controller, and the second storage controller is caused to provide the first storage communications along a second path between the first server and the first storage subsystem.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.