A SERVICE TAKEOVER METHOD BASED ON DEVICE DISASTER-TOLERANCE, SERVICE SWITCHING APPARATUS AND SPARE MACHINE

摘要

A service takeover method based on device disaster-tolerance comprises the following steps: when the service switching device detects that a fault occurred in the producing machine, it transmits the service controlling information which should be sent to the producing machine to the spare machine which can provide a disaster-tolerance capability for the producing machine; when the spare machine receives the service controlling information of specified condition transmitted by the service switching device, it starts to take over the service information transmitted by the service switching device. When a fault occurred in the device provided with a disaster-tolerance capability, the present invention can increase the takeover speed of service, thus reducing the interrupt time with the service as possible and providing disaster-tolerance capability for the device.