Input/output device service alert function

Details Input/output device service alert function Input/output device service alert function

1988-08-30

1990-05-01

Fleming, Michael R.

Excavating

371 165, 371 291, G06F 1100

Patent

active

049224913

ABSTRACT:
A method of automatically detecting and analyzing exception events occurring in a computer peripheral subsystem connected to a host computer system includes maintaining a Subsystem Environment data base comprising information relating to the current configuration of the computer peripheral subsystem, and usage and error information relating to the peripheral subsystem. A Problem Description procedure is conditionally invoked when the data in the Subsystem Environment data base reflects an exception event that indicates either a clear or a probable need for service attention to the peripheral subsystem. The Problem Description procedure includes creating from stored rules a view of the Subsystem Environment data base relevant to the exception event, and developing a Problem Profile (record) describing the exception event. The Problem Profile record is compared to the Problem Profile data base to determine if the current exception event relates to a problem already recorded in the data base. If a match is found, the matching record is updated with new information from the current record. Otherwise, the current record is entered as a new problem. If the Problem Profile indicates that the exception event is a repeat of a problem already recorded in the Problem Profile data base, the matching profile record is updated to reflect the new Problem Profile data. A Problem Evaluation procedure is conditionally invoked. The Problem Evaluation procedure is not invoked if the updated problem record (not the new Problem Profile) from the Problem Profile data base has already been reported to the host system and a service action is pending. If operations of the peripheral subsystem have been disrupted or degraded beyond the limits of acceptable subsystem performance, a service alert message is generated. The service alert message is inserted into the Problem Profile record in the Problem Profile data base, and the service alert message is transmitted to the host system. The service alert message contains a variety of information for the subsystem user and for the repair technician.

REFERENCES:
patent: 3873819 (1975-03-01), Greenwald
patent: 3904860 (1975-09-01), Huber
patent: 4549296 (1985-10-01), Castel
patent: 4586147 (1986-04-01), Tadokoro
patent: 4745602 (1988-05-01), Morrell
J. L. Coale, IBM Disc Storage Technology, Copyright International Business Machines Corp., 1980, pp. 59-61.

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