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Your drive change from sequential mode to library mode.  You need to use
those little buttons behind the door to change the mode back to
sequential.  I would also change the TAPMLB04 device description to not
vary on at IPL. 


Christopher Bipes
Information Services Director
CrossCheck, Inc.

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Burns, Bryan
Sent: Thursday, June 22, 2006 8:34 AM
To: MIDRANGE-L@xxxxxxxxxxxx
Subject: 3581 reconfigures and won't load next tape

Our 3581 tape unit isn't loading the next tape when it unloads a tape.
How do I fix this?

It used to auto load the next tape until I did two consecutive IPLs on
Sunday.  Peculiarly, after the second IPL, I couldn't vary on the tape
unit because it was "in use by object TAPMLB04".  I had to vary off
TAPMBL04 in order to vary on the 3581 (TAP01).

We also have another tape unit, a 3570 (TAP02).

A snip of QHST from the IPL shows:
Status of drive resource in device TAPMLB04 changed successfully.
Device TAP01 vary on failed.
Vary on completed for TAP02

Another peculiarity is that the 3581 auto configured from a TAPE UNIT
3580-002 00-0180XXXX TAP01  U0595.001.103093E-CB1-C07-T1L2-L0 to a
TAPE LIBRARY  3581-028   00-00000  TAPMLB04
after the IPLs.

Should I power cycle the 3581 in the hope that it will reconfigure back
to a tape unit?  Will that cause it to load the next tape?


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