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Maintenance proctors for mainframe computer: Special-purpose computers supervise the proper operation of their host computer to improve reliability and reduce down time

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1 Author(s)
Tze-Shiu Liu ; Honeywell Information Systems Inc., Phoenix, AZ, USA

A description is given of the maintenance processor whose function it is to supervise the proper operation of its host computer to improve reliability and reduce down time. A discussion is presented of concurrent monitoring of operation, fault diagnosis and recovery, retrying failed instructions, reconfiguring multiprocessor systems, and correcting memory errors.

Published in:

IEEE Spectrum  (Volume:21 ,  Issue: 2 )