INF – ORA-19554: error allocating device, device type: SBT_TAPE

Problem:

INF - connected to recovery catalog database
INF - sql statement: alter system archive log current
INF - RMAN-00571: ===========================================================
INF - RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
INF - RMAN-00571: ===========================================================
INF - RMAN-03009: failure of allocate command on ch00 channel at 08/02/2012 13:24:21
INF - ORA-19554: error allocating device, device type: SBT_TAPE, device name:
INF - ORA-27211: Failed to load Media Management Library
INF - Additional information: 2
INF - Recovery Manager complete.
INF - End of Recovery Manager output.
INF - End Oracle Recovery Manager.

Solution:

$ /usr/openv/netbackup/bin/oracle_link

OR

cd $ORACLE_HOME\lib
ln -s /usr/openv/netbackup/bin/libobk.so64 libobk.so