I've been trying to find where the tape drive unit addresses are discussed
in the manuals. I receive a mount message for unit address 400 when
migrating to tape. I need to set up some execs to dynamically attach a
specific address to dsmserv from another virtual machine and can't find any
documentation on how dsmserv handles attach/detach during mount processing.
The example exit contained some code relating to this but it doesn't answer
all my questions.

Is this documented anywhere?

TIA



Donn Wolf
Senior Systems Programmer
Northern Michigan University
Marquette, Michigan