MONITORING CONTROLLER

PROBLEM TO BE SOLVED: To provide a monitoring controller which has improved resistance against double failure and is recoverable in a short period of time after the failure occurs. SOLUTION: A monitoring control system is disclosed in which an active system server 101 and a standby system server 102 share monitoring control application information via a common disk 103 and perform monitoring control with respect to a monitored device. In the monitoring control system, each of the active system server 101 and the standby system server 102 is provided with middle ware 201, a monitoring control application 202 and a redundancy fault monitoring application 203. The redundancy monitoring control application 203 causes monitoring control application information stored in local disks 1011, 1021 of the respective servers to synchronize with monitoring control application information stored in the common disk 103. When both systems fail from this state, fall back operation in which functions provided by the monitoring control application 202 are narrowed down to the minimum is performed. COPYRIGHT: (C)2011,JPO&INPIT