Patent ID: 7428660

Claim:
A starting control method of 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, comprising: causing each of the information processors to set a system of its own device based on system history of past running times when power is supplied to the pair of information processors; causing the information processor of the control system to execute a POST operation and a starting operation for determining a success of starting of its own device, and to instruct execution of a POST operation to the information processor of the standby system after completion of the starting operation; causing the information processor of the standby system to execute the POST operation in accordance with the instruction, and to request synchronization with its own device to the information processor of the control system upon completion of the POST operation; and causing the information processor of the control system to copy information regarding the starting operation executed by its own device upon reception of the synchronization request, thereby starting a synchronous operation with the device.