ADSM/ATL problem in a Sun box

All,

I had an ADSM V3.1.2.40 installed in a Sun E250 box with Solaris 2.6,
connect to an ATL P3000 with 4 DLT drive. I installed the patch 105867-01,
and can use dd and tar to write to tape from Solaris. When follow up the
quick start guide to configure the ADSM to label the libvolume, I got the
following error:


*** Error 1 when try to label libvolume:
ANR8300E I/O error on library ATLP3000 (OP=C0086C04, CC=304, KEY=04, ASC=83,
ASCQ=03,
SENSE=70.00.04.00.00.00.00.0D.00.00.00.00.83.-
03.00.00.00.00.83.03.00.,
Description=Changer failure).  Refer to Appendix B in the 'Messages' manual
for recommended action.
ANR8802E LABEL LIBVOLUME process 2 for library  failed.


* * *  Error 2 when run this command:
kaka# ./dsmlabel -drive=/dev/rmt/2mt,128 -library=/dev/rmt/0lb -overwrite

ADSTAR Distributed Storage Manager for Sun Solaris
Volume Label Utility Program
Version 3, Release 1, Level 2.40

Licensed Materials - Property of IBM

5639-B9300 (C) Copyright IBM Corporation 1994, 1999.  All rights reserved.
U.S. Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corporation.

ANR0900I Processing options file dsmserv.opt.
ANR9718E Device '/dev/rmt/2mt' is not recognized as a supported drive type.

Once I suspect I didn't have the extended device support with the ADSM, but
after run "query license" it tells me I have the "Advanced Device Support
license". I am really confused about that for several days, and wondering
who can share me some lights on this...

Thanks a lot!

Victor