Disaster tolerance business system and disaster tolerance method

The present invention discloses a system and method for disaster recovery disaster recovery service, the system comprising: a fault detection module, a service server and / or service for detecting whether services in a failure state; server management module for the detection result is It is determined to replace DR server service server; service handling module for mounting on a disaster recovery service server; service operation module for running on a server disaster recovery services. The present invention improves the reliability of the disaster, the disaster recovery service system reduces the cost of investment.