| 摘要 |
PURPOSE:To shorten the diagnosing time by selecting the input/output instructions which perform the patrol diagnoses based on the input/output monitor information. CONSTITUTION:The reference is given to the monitoring information (types and end states of input/output instructions) for each peripheral device 104 of a computer system recorded on a patrol diagnosis control table 107. Then the input/output instruction that was not executed within a fixed time is executed at patrol diagnosis together with the input/output instruction that had the abnormality even once within a fixed time. At the same time, the control is carried out so that the input/output instruction that was carried out and finished normally within a fixed time is not carried out at patrol diagnosis. Thus the input/ output instructions which perform the patrol diagnoses are limited and the diagnosing time is shortened. |
