'RMAN-10038: database session for channel nvch1 terminated unexpectedly' error message when runni (4047877)

An 'RMAN-10038: database session for channel nvch1 terminated unexpectedly' error message happens when running an RMAN restore from the NetVault Console.

The following errors were entered in the Binary log:

1] Information 2011/11/21 18:46:30 115 Data Plugin cipsstandby RMAN-03002: failure of recover command at 11/21/2011 18:46:30
2] Information 2011/11/21 18:46:30 115 Data Plugin cipsstandby RMAN-10038: database session for channel nvch1 terminated unexpectedly
3] Error 2011/11/21 18:46:30 115 Data Plugin cipsstandby RMAN returned exit code 1

Here is the script generated by NetVault and if this script was manually given to RMAN, then the restoration ran OK:

run {
allocate channel nvch1 type 'SBT_TAPE';
send 'NV_BACKUP_SERVER=cipsbackup';

sql "alter tablespace TS_SYMPO offline immediate";
restore datafile 24 ;
recover datafile 24 ;
recover tablespace 'TS_SYMPO';
sql "alter tablespace TS_SYMPO online";
release channel nvch1;
}

Further investigation showed the following items in the NetVault Server and Client Trace files:

NetVault Server Job Manager Trace (nvjobmgr1303.log):
2 JOBMGR ??? 19889 351 0 92350286953 MSG_CHANNEL_FLUSHED_MSG received for Channel 0x96bf7d0
2 JOBMGR ??? 19889 100 0 92406765633 Report job status 'Job Failed' to schedule manager
2 JOBMGR ??? 19889 62 0 92406765948 Plugin is now in state Job Failed
2 JOBMGR ??? 19889 338 0 92406766724 Removed MsgAddressO (null):3 from channel list 0x96b57f0
2 JOBMGR ??? 19889 210 1 92406766747 Plugin exited: "Restore failed" status 2 flags 0x0
2 JOBMGR ??? 19889 211 0 92406766751 HAVE EXIT STATUS
2 JOBMGR ??? 19889 168 1 92406766776 Fatal error: Restore failed

NetVault Client Oracle APM Trace (oracleapm1668.log):
2 ORAOPS ??? 12997 38 0 92406765950 Failed to successfully sys exec
2 ORAOPS ??? 12997 4 0 9240