Jake, do you really get the exact same error messages?
i.e. 
>> IEH627I VOLUME NOT LABELED , REASON CODE = 00001000. REFER TO MESSAGE
>>> MANUAL FOR FOR EXPLANATION  OF BIT SETTINGS
>>
>> IEH605I INVALID DEVICE ALLOCATED ON D72D
>>>
>>
>> IEH607I ALLOCATED DEVICES EXHAUSTED

Seems there is enough to go on, isnt there?
IEH627I you found the msg explanation and from that the reason code says it an 
internal error not related to dynamic exits.
So based on that you would call IBM for support - if it was available.

However, IEH605I is interesting - it gives device as D72D - yet your JCL 
specified UNIT 890.  So which is the actual tape drive you wanted to use? Did 
your ACS routines direct the allocation to some wrong device?

IEH607I just says there was no other allocated tapes to try.

Be sure you specify DEFER on the UNIT keyword.
Be sure SMS ACS does not direct your allocation to wrong device.

If you have rmm running - use EDGINERS instead of IEHINITT - but same JCL 
requirements for UNIT with DEFER

Mike Wood

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