SVC cluster configuration node failover
US8868966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2013 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jun 30, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/85
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer programs are provided for failover responses to configuration node failures in SVC clusters. An SVC cluster manages a plurality of storage devices and includes a plurality of SVCs interconnected via a network, each SVC acting as a separate node. A storage device event log is saved, with an original configuration node. An entry is made in the storage device event log each time the original configuration node receives storage device events and setting the entry to a negative value indicating a storage device event has not been handled. The entry is set to a positive value indicating the storage device event has been handled after the original configuration node notifies respective subscribed clients about those of the storage device events the original configuration node receives. A new configuration node is activated in response to configuration node failures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.