Duplexed operation system and method therefor
US11803452B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2020 |
| Grant date | Oct 31, 2023 |
| Priority date | — |
| Expiry date | Nov 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A duplex operation system including: a plurality of general-purpose devices on each of which a plurality of virtual machines are mounted; and a virtual machine controller that controls a duplex operation performed by two systems, an active system and a standby system, of the virtual machines. When detecting a failure of the active system, the virtual machine controller stops the virtual machine of the active system, activates the virtual machine of the standby system corresponding to the stopped active system, and reconfigures the standby system of the activated virtual machine on the hardware of the stopped virtual machine, and when detecting a failure in the virtual machine of the reconfigured standby system, the virtual machine controller reconfigures the standby system of the failed virtual machine on the general-purpose device 13 different from the general-purpose device 11 in which the virtual machine of the active system has been stopped.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.