Have you increased timeouts on the media sever? For Oracle backups we normally change CLIENT_CONNECT_TIMEOUT and CLIENT_READ_TIMEOUT to 1800 (30 min).

I saw this issue at Netbackup 6.5.3 and found that if I restarted the master server, the problem would go away for a certain amount of time and then appear again.  It appeared to get resolved with 6.5.3.1, even though nothing in that patch was indicated for RMAN backups.  I managed to trace my issue down to nbpem.

We have sinced moved to 6.5.4 and again we do not see this issue.

Regards,

Benjamin Schmaus

if you have multiple streams, the number of streams in the policy should be more or equal to the number of rman channels

maybe it's a good idea to have a look inside the dbclient log as well

 Can you try to find the name resolution is working fine.

Run the bpclntcmd from both the master and the client server with the following switches:

bpclntcmd -self -- This returns who the client believes it is
bpclntcmd -pn -- This returns who the client believes the master is, and what the master says the client is
bpclntcmd -hn <hostname_master> -- This returns the IP address is associated with the master server, using gethostbyname()
bpclntcmd -hn <hostname_client> -- This returns the IP address is associated with the client server, using gethostbyname()

bpclntcmd -ip <IP_address_master> -- This returns the hostname associated with the master server's IP address, using gethostbyaddr()

bpclntcmd -ip <IP_address_client> -- This returns the hostname associated with the client server's IP address, using gethostbyaddr()

All names and IP addresses should match

what is the client name in the NB_ORA_CLIENT? It should be the same as the client in the policy.

I have been getting this recently as well. I updated the client from 5.0 to 6.5 and now the rman won't connect at all. I've tried the bpclntcmd commands and those are all fine but I'm still getting the above error message. Where can I find the name of the nb_ora_client?

Where does the command find the information for the schedule and policy to use? Is there a config file with this information somewhere?