"McKown, John" mentioned on 8 April, a DOS message "JOB TERMINATED DUE TO PROGRAM REQUEST". I think a far more mysterious message we received was (the sands of time prevent me from giving a correct, literal rendering of the messaage) "UNIT xxx - INVALID ERROR". After a lot of head-scratching, an operator mentioned seeing a pool of hydraulic fluid on the floor behind the 2319 containing the unit xxx mentioned. IBM CE repaired the unit. His explanation of the message was that the device was so fouled up that it was returning sense data which was invalid for the device type, and DOS could not make sense of it.

Dale Miller
[email protected]

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