COMPUTER SYSTEM, COMPUTER CONTROL METHOD AND COMPUTER CONTROL PROGRAM

摘要

PROBLEM TO BE SOLVED: To ensure reliability and soundness of output data even if data is broken by a hardware failure of node, a network failure or the like. SOLUTION: The system comprises: a plurality of CPU nodes 11-14 which simultaneously execute the same processing; and a plurality of collation nodes 21-28 which collate operation results from the CPU nodes 11-14. The plurality of CPU nodes 11-14 and the plurality of collation nodes 21-28 are connected to a multiplex network 1, and the plurality of collation nodes 21-28 is connected to an external network 2. In this system, further, each of the CPU nodes 11-14 and each of the collation nodes 21-28 periodically transmit an operating state of the own node as living state information through the multiplex network 1, and receive living state information of the other nodes through the multiplex network 1. COPYRIGHT: (C)2009,JPO&INPIT