AUTOMATIC RESTORING FUNCTION FOR SERVICE PROCESSOR IN DISTRIBUTED PROCESSING SYSTEM

摘要

PROBLEM TO BE SOLVED: To attain automatic restoration by transfering a processing from an abnormal processing program to an initialization program when a service processor detects the abnormality of input and output by the diagnostic function. SOLUTION: When a microprocessor incorporated in a service processor(SVP) 4 stops the operation according to the detection of abnormality by self-diagnosis, a processing is transferred from an abnormal processing program to an initialization program incorporated in the service processor 4. Thus, a value similar to that at the time of microprocessor reset is written in a code segment and an instruction pointer in the microprocessor so that the re-activation of the service processor 4 can be realized without inputting any reset signal to the service processor 4.