| 摘要 |
PURPOSE:To execute maintenance diagnosis without giving a use limit to a user by predicting the working rate of respective processors based on a working rate supervisory means and a working rate file and executing diagnosis by means of detaching the processors from a system when the prediction working rate is deteriorated. CONSTITUTION:Plural processors 6-9 are simultaneously used and operated. The working rate supervisory means 11 obtains the working rate of the whole system, and reports it to a working rate prediction means 12. The working rate prediction means 12 outputs a command to a device selection means to be diagnosed 13 when the means 12 judges that the throughput of the whole system will not be deteriorated even if one processor is detached from data on the past working rate in a system concerned, which is read from the working rate file 3, and the working rate of the reported and present system. The device selection means to be diagnosed 13 selects the processor having the highest probability of fault occurrence among the processors 6-9 from information on an error log file 4 and a diagnosis hysteresis file 5 and diagnoses the processor by detaching it from the system through a device switching means 14. |
