Fault-tolerance pattern and switching protocol for multiple hot and cold standby redundancies
US9952948B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2016 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Aug 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/805
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for fault tolerant controller readiness. Executing functions by a first controller operating in a primary status mode. Operating in a hot standby status mode by a second controller and mirroring the first controller by executing functions to operate as a redundant controller. Operating in a cold standby status mode by at least one backup controller under normal operating conditions. The second controller is reconfigured while operating under normal operating conditions from the hot standby status mode to the primary standby status mode if a failure occurs in the first controller. Reconfiguring the at least one backup controller operating under normal operating conditions from cold standby status mode to hot standby status mode to operate as a redundant controller in response to the reconfiguring the second controller from the hot standby status mode to the primary status mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.