COMPUTER SYSTEM WITH AUTOMATIC DEGENERATIVELY STARTING-UP FUNCTION

PURPOSE: To automatically start up the computer system which is equipped with plural CPUs and has the automatic degeneratively starting-up function, for operation that can be performed by remaining CPUs even if a fault occurs to one of the CPUs. CONSTITUTION: A CPU monitor and control means 1 discon...

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1. Verfasser: NAGAI YUKIO
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To automatically start up the computer system which is equipped with plural CPUs and has the automatic degeneratively starting-up function, for operation that can be performed by remaining CPUs even if a fault occurs to one of the CPUs. CONSTITUTION: A CPU monitor and control means 1 disconnects the CPU which becomes faulty among the CPUs when the power source is turned ON. A CPU quantity storage means 2 is stored with the minimum number of CPUs required to perform the specific operation. A comparing means 3 compares the number of CPUs which are normal among the CPUs with the minimum number of CPUs which is stored in the CPU quantity storage means 2 and a start-up control means 4 judges that the system can be started up when the number of normal CPUs is larger than the minimum number of CPUs and starts up the system, but judges that the system can not be started up when the number of normal CPUs is less than the minimum number and quits starting up the system.