Database Software

hi all
help please;)
i have tiv 6.3 and aix 7.1 and oracle 11.2
i want to allocate channel but i have error((
RMAN> @1

RMAN> run
2> {
3> allocate channel sbt1 type sbt parms 'ENV=(TDPO_OPTFILE=/usr/tivoli/tsm/client/oracle/bin64/tdpo.opt)';
4> release channel sbt1;
5> }
using target database control file instead of recovery catalog
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03009: failure of allocate command on sbt1 channel at 11/19/2012 14:17:31
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27211: Failed to load Media Management Library
Additional information: 8

RMAN> **end-of-file**

RMAN>


-bash-3.00# ls -lp /usr/tivoli/tsm/client/oracle/bin64/
total 4128
drwxrwxrwx 2 root system 256 Jul 10 17:38 EN_US/
-rwxrwxrwx 1 root system 47 Sep 23 2011 agent.lic
-rwxrwxrwx 1 root system 130 Nov 13 18:00 dsm.opt
-rwxrwxrwx 1 root system 0 Nov 05 10:18 libobk64.a
-rwxrwxrwx 1 root system 783 Nov 05 13:00 tdpo.opt
-rwxrwxrwx 1 root system 691 Sep 23 2011 tdpo.opt.smp64
-rwxrwxrwx 1 root system 1018481 Sep 23 2011 tdpoconf
-rwxrwxrwx 1 root system 1074232 Sep 23 2011 tdposync
-bash-3.00# cat /usr/tivoli/tsm/client/oracle/bin64/tdpo.opt
***************************************************************************
* IBM Tivoli Storage Manager for Databases
* Data Protection for Oracle
*
* Sample tdpo.opt for the AIX Data Protection for Oracle 64bit
*********************************************************************

*DSMI_ORC_CONFIG /usr/tivoli/tsm/client/oracle/bin64/dsm.opt
*DSMI_LOG /home/oracle/DSMI_LOG

*TDPO_FS orc9_db
*TDPO_NODE <hostname>
*TDPO_OWNER <username>
*TDPO_PSWDPATH /usr/tivoli/tsm/client/oracle/bin64

*TDPO_DATE_FMT 1
*TDPO_NUM_FMT 1
*TDPO_TIME_FMT 1

*TDPO_MGMT_CLASS_2 mgmtclass2
*TDPO_MGMT_CLASS_3 mgmtclass3
*TDPO_MGMT_CLASS_4 mgmtclass4


dsmi_orc_config /usr/tivoli/tsm/client/oracle/bin64/dsm.opt
dsmi_log /tivtemp

-bash-3.00# cat /usr/tivoli/tsm/client/oracle/bin64/dsm.opt
SErvername tdpo
COMMMethod TCPip
TCPServeraddress 10.128.20.6
PASSWORDAccess generate
passworddir /home/oracle
nodename test
-bash-3.00# ls -lp /home/oracle/DSMI_LOG
total 0
-rwxrwxrwx 1 root system 0 Nov 19 14:06 1
-bash-3.00# ls -lp /home/oracle/DSMI_LOG
total 0
-bash-3.00# ls -lp /home/oracle/
total 200
-rw------- 1 oracle dba 15918 Nov 19 10:45 .bash_history
drwx------ 2 oracle dba 256 Dec 08 2011 .cedit/
drwxr-xr-x 3 oracle dba 256 Dec 08 2011 .java/
drwxr-xr-x 2 oracle dba 256 Nov 17 19:43 .mc/
-rwxr----- 1 oracle dba 590 Dec 08 2011 .profile
drwx------ 2 oracle dba 256 Feb 17 2012 .ssh/
-rw------- 1 oracle dba 59 Nov 14 15:29 .vi_history
-rw-r--r-- 1 oracle dba 133 Nov 13 18:30 1
drwxrwxrwx 2 root system 256 Nov 19 14:26 DSMI_LOG/
-rw------- 1 oracle dba 128 Jul 13 18:04 TSM.PWD
-rw-r--r-- 1 oracle dba 13258 Sep 17 09:55 test_120917_0954.nmon
-rw-r--r-- 1 oracle dba 511 Dec 09 2011 listener.ora
drwxr-xr-x 3 oracle dba 256 Dec 09 2011 oradiag_oracle/
-rw-r--r-- 1 oracle dba 29159 Nov 13 18:44 smit.log
-rw-r--r-- 1 oracle dba 1306 Nov 13 18:43 smit.script
-rw-r--r-- 1 oracle dba 3307 Nov 13 18:43 smit.transaction
-rw-r--r-- 1 oracle dba 138 Nov 05 14:16 test_tape_rman
-rw-r--r-- 1 oracle dba 1711 Sep 15 19:53 tnsnames.ora
-rw-r--r-- 1 oracle dba 0 Dec 10 2011 vi
-bash-3.00# ls -lp /home/oracle/ | grep DSMI_LOG
drwxrwxrwx 2 root system 256 Nov 19 14:26 DSMI_LOG/
-bash-3.00#
oracle@test:~>ls -lp $ORACLE_HOME/lib/libobk.a
lrwxrwxrwx 1 oracle dba 19 Nov 19 14:03 /oracle/OraHome11g/lib/libobk.a -> /usr/lib/libobk64.a
oracle@test:~>ls -lp /usr/lib/libobk64.a
lrwxrwxrwx 1 root system 46 Nov 19 14:02 /usr/lib/libobk64.a -> /usr/tivoli/tsm/client/oracle/bin64/libobk64.a
oracle@test:~>ls -lp /usr/tivoli/tsm/client/oracle/bin64/libobk64.a
-rwxrwxrwx 1 root system 0 Nov 05 10:18 /usr/tivoli/tsm/client/oracle/bin64/libobk64.a
oracle@test:~>


have i mistake in this configuration?
thanks a lot