System for localizing field replaceable unit failures employing

Details System for localizing field replaceable unit failures employing System for localizing field replaceable unit failures employing

1994-09-22

1996-10-01

Beausoliel, Jr., Robert W.

G06F 1300

Patent

active

055617603

ABSTRACT:
A system for the automated isolation and report of a Field Replaceable Unit (FRU) and/or a Replaceable Component (RC) responsive to a stream of Fault Symptom Code (FSCs) produced in response to a system fault. The process is entirely automated and can be stored in microcode to allow immediate updating of FSC to FRU/RC correspondences responsive to system design revisions. Selected FRU/RC isolation procedures are included in the FRUs/RCs for automatic execution as part of the isolation process. Failure probability data, including probability distribution data, are included in each FRU/RC to support an alternative weighted failure probability (WFP) isolation scheme to isolate a faulty FRU/RC even when the automated isolation procedures do not provide an unambiguous result.

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