I've defined an Exabyte EZ17 with a Mammoth drive as a library on ADSM/AIX v.
3.1.2.30. I can do a TAR from AIX, but when I try to label tapes for ADSM, I
get the following:

ANR8302E I/O error on drive 8MM (/dev/mt0) (OP=SETMODE,
CC=207, KEY=05, ASC=26, ASCQ=00,
SENSE=70.00.05.00.00.00.00.18.00.00.00.00.26.00.00.80.00-
.04.00.01.00.00.00.12.BB.5E.00.00.D0.00.00.00.,
Description=Device is not in a state capable of
performing request).  Refer to Appendix B in the
'Messages' manual for recommended action.

Has anyone seen this or anything like it, or have an idea what the fix might
be?