rman and allocating chanel

'Allocate channel' is part of the backup script. Most of the required steps can be found in chapter 3 of the manual (Configuration). Please read the manual - that is how most of us learned how to perform agent backups - nobody to ask, no forums - just the manuals.

You need to work with your Oracle DBA -  you will work together to do the linking - sit together with the instructions in the manual on how to do the linking and get the DBA to run the oracle_link command and verify the symbolic link afterwards.

The DBA's job is to create the script. NetBackup provides sample scripts. The DBA can choose to use the sample scripts and modify them as per your environment or create them from scratch. The sample scripts are in /usr/netbackup/ext/db_ext/oracle/samples/rman.

Your function is to create the policy as per the manual. The DBA will give you the exact path to the script which you will add in Backup Selection in the policy.

Before testing any backups, ensure that log directories are created on both cluster nodes:

Create the folders under /usr/openv/netbackup/logs:

bpcd, dbclient and bphdb

Change permissions on dbclient and bphdb log directories to ensure write permission for oracle user:

chmod 777 dbclient bphdb

You also need to verify forward and reverse lookup from the master and media server to the virtual name. Also ensure that the client(s) can resolve hostname and IP for master and media server(s). Best to add hosts entries on servers and clients.