To manually test the loading of the DataProtector Oracle library with rman, please use the following example. The example will also create DataProtector debug logs in /tmp which can viewed in case there are any problems loading the library :
RMAN> connect target sys/<password>@<SID>
RMAN> RUN {
2> ALLOCATE CHANNEL 'DP_TEST' TYPE 'SBT_TAPE'
3> PARMS 'SBT_LIBRARY=/opt/omni/lib/libob2oracle8_64bit.so,ENV=(OB2OPTS=-debug 1-500 ORA)';
4> RELEASE CHANNEL 'DP_TEST';
If using windows, the example would be the following and the debug would go into <OMNIBACK_DATA_HOME>\tmp :
RMAN> connect target sys/<password>@<SID>
RMAN> RUN {
2> ALLOCATE CHANNEL 'DP_TEST' TYPE 'SBT_TAPE'
3> PARMS 'SBT_LIBRARY=C:\PROGRA~1\OmniBack\bin\orasbt.dll,ENV=(OB2OPTS=-debug 1-500 ORA)';
4> RELEASE CHANNEL 'DP_TEST';