System and method for disabling auto-trespass in response to an automatic failover
US8443119B1 · kind B1 · utility
18Cited by
2References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2004 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F11/2089
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Auto-trespass can be at least temporarily disabled subsequent to an automatic failover. The automatic failover exchanges roles between an active path and a passive path, such that the passive path becomes the active path and vice versa. By disabling auto-trespass, hosts that are unaware that the automatic failover has occurred will not trigger another failover when those hosts attempt to perform I/O operations via the formerly-active path. This can reduce performance decreases that would otherwise occur due to the active role being traded in a “ping-pong” manner between the paths.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.