RMAN-10038: database session for channel prm3 terminated unexpectedly

Problem:

I had an issue where I was trying to build a 1.7 TB Data Guard environment and kept receiving the highlighted error below.  I thought it was some type of fluke so I restarted the job 2 more times only to receive the same error.

Fix:

After researching the issue, I found it was because the sqlnet.ora needed to be configured correctly.  I added the entry " SQLNET.EXPIRE_TIME = 10 " to the sqlnet.ora on both the source and the target database servers under the RDBMS $ORACLE_HOME/network/admin.  Upon restarting the RMAN active database standby build, it was able to move past this error and built successfully.


Starting backup at 07-MAY-17
channel prm1: starting datafile copy
input datafile file number=00003 name=+DATA/testdb/datafile/undotbs1.262.940412881
channel prm2: starting datafile copy
input datafile file number=00129 name=+DATA/testdb/datafile/welldoc1.390.940509955
channel prm3: starting datafile copy
input datafile file number=00130 name=+DATA/testdb/datafile/welldoc10.391.940509955
channel prm4: starting datafile copy
input datafile file number=00146 name=+DATA/testdb/datafile/welldoc10_lob.407.940509955
RMAN-03009: failure of backup command on prm3 channel at 05/07/2017 20:45:51
RMAN-10038: database session for channel prm3 terminated unexpectedly
ORACLE error from target database:
ORA-03135: connection lost contact
Process ID: 23071
Session ID: 1767 Serial number: 139

 channel prm3 disabled, job failed on it will be run on another channel
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
ORA-03114: not connected to ORACLE
RMAN-03002: failure of Duplicate Db command at 05/07/2017 20:45:51
RMAN-05501: aborting duplication of target database
RMAN-03015: error occurred in stored script Memory Script
RMAN-03009: failure of backup command on default channel at 05/07/2017 20:45:51
RMAN-10038: database session for channel default terminated unexpectedly

 Recovery Manager complete.

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