RMAN Backup failures - NBU 6.5.3
dgiberson@westjet.com
July 6th, 2009
Our RMAN backups appear to be failing with the following errors in the logs:
RMAN-03009: failure of backup command on ORA_SBT_TAPE_5 channel at 07/06/2009 03:55:54
ORA-19506: failed to create sequential file, name="05kje21b_1_1", parms=""
ORA-27028: skgfqcre: sbtbackup returned error
ORA-19511: Error received from media manager layer, error text:
VxBSACreateObject: Failed with error:
Server Status: Communication with the server has not been iniatated or the server status has not been retrieved from the server.
Occasionally one of the channels will backup successfully while others will faill. We have checked our networking and no new rules have been added..
Any suggestions?
Have you increased timeouts
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).
RMAN Issues
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
check the policy settings
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
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
reverse is true
and for oracle rman the reverse name resoltion is required as well.
Bob Stump
VERITAS - "Ain't it the truth?"
Client name
what is the client name in the NB_ORA_CLIENT? It should be the same as the client in the policy.
Error message as well
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?
Same error
Where does the command find the information for the schedule and policy to use? Is there a config file with this information somewhere?
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