$ rman target / catalog user/pwd@db debug trace rman.trc log rman.log
RMAN>
Additional Tracing at the channel level
RMAN> run {
2> allocate channel ch01 type sbt trace=5;
3> send 'NB_ORA_CLIENT=hypprdbv1-bn';
4> RESTORE SPFILE to pfile '/export/home/oracle/sshaik/initHYPP.ora' from autobackup maxdays 20;
5> }
allocated channel: ch01
channel ch01: sid=34 devtype=SBT_TAPE
channel ch01: Veritas NetBackup for Oracle - Release 6.5 (2007072323)
sent command to channel: ch01
Starting restore at 07-JUL-10
channel ch01: looking for autobackup on day: 20100707