| 摘要 |
PROBLEM TO BE SOLVED: To provide a high fault-tolerant server system with simple and inexpensive configuration and a failure detection method thereof. SOLUTION: A control part 30 transfers a request for processing from a client 40 to servers 21, 22 mounted on an information processor 91 and a server 23 mounted on an information processor 92, determines the validity of the response results from respective servers, and transfers one of the valid response results to the client 40. The information processors 91, 92 are provided with server monitors 71, 72 monitoring actions of servers, and system monitors 81, 82 monitoring actions of the information processors themselves respectively. The control part 30 isolates the fault server from the system based on the output results from respective monitors.
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