Yep, I am using chg-zd-mtx.  Max drive wait is indeed at the default of 120.
This setting has worked in the past.  I think I forgot to mention that
that error id is for the changer and not the tape drive (which is on id=2).

It is an autopak 1x15.  The drive would eject the tape, the arm would grab
it and put the tape back, the arm would then move to the bottom and this
unexpected busfree error would show up once it reached bottom and
the taper algo just stops complaining with a partial mtx output:

amtape: could not load slot 2: mtx: Request Sense: Long Report=yes


-- 

Robin Chan WONG
-------------------------------
Magnetic Resonance Spectroscopy
Montreal Neurological Institute
McGill University



On Tue, 8 Apr 2003, Brandon D. Valentine wrote:

> Are you using chg-zd-mtx?  What have you set max_drive_wait to in your
> changer file?  For my AIT3 drive I must set it to 300 seconds as the
> default is not long enough to both rewind and eject an AIT tape
> (necessary when you're using a nonrewinding tape device).  I get
> similiar errors with max_drive_wait set to the default.  I suspect this
> is your problem, particularly since it works for you when using mtx
> manually.