Starting control method, duplex platform system, and information processor

A dual platform system comprising:

• a pair of information processors which are interconnected to communicate with each other and set to different systems of a control system started at the time of running and a standby system set on standby for starting at the time of running, wherein:
• each of the information processors includes a monitoring section to set a system of its own device based on system history of past running times when power is supplied and to monitor operations of its own device and the other device based on the set system, and a control section to execute an operation corresponding to the system set by the monitoring section,
• the control section executes a POST operation and a starting operation for determining a success of starting of its own device when its own device is set to the control system, and instructs execution of a POST operation to the other device of the standby system after completion of the starting operation,
• the control section executes the POST operation in accordance with an instruction from the other device of the control system when its own device is set to the standby system, and requests synchronization with its own device to the other device of the control system upon completion of the POST operation, and
• the monitoring section copies information regarding the starting operation executed by its own device upon reception of the synchronization request from the other device of the standby system when its own device is set to the control system, thereby starting a synchronous operation with the device.

An information processor set to one of a control system started at the time of running and a standby system set on standby for starting at the time of running and connected to communicate with the other information processor set to the other system, comprising:

• a monitoring section which sets a system of its own device based on system history of past running times when power is supplied and monitors operations of its own device and the other device based on the set system;
• and
• a control section which executes an operation corresponding to the system set by the monitoring section, wherein:
• the control section executes a POST operation and a starting operation for determining a success of starting of its own device when its own device is set to the control system, and instructs execution of a POST operation to the other device of the standby system after completion of the starting operation,
• the control section executes the POST operation in accordance with an instruction from the other device of the control system when its own device is set to the standby system, and requests synchronization with its own device to the other device of the control system upon completion of the POST operation, and
• the monitoring section copies information regarding the starting operation executed by its own device upon reception of the synchronization request from the other device of the standby system when its own device is set to the control system, thereby starting a synchronous operation with the device.