Forum Discussion

anishC5's avatar
anishC5
Level 5
12 years ago

Client backup failing with error 25

Hi All,

We had done an extensive analysis for the last 2 months on this issue.

Client Server OS: win svr 2008 64 bit

checked the BPCD log with the following error:

08:08:44.891 [34140.41260] <4> bpcd valid_server: server1.backup.local is not a master server
08:08:44.891 [34140.41260] <16> bpcd valid_server: server1.backup.local is not a media server either

We do have the master and media server entires done on the Netbackup properties of the client.

error code 46: server access denied.

 

I tried to delete the total content from registry but after deleting all it is holding onto the master server entry.

Is there anything we can do or logs we can check please?

 

Thanks,

Anish

7.1.x and Earlier
Backup and Recovery
NetBackup
Virtualization
  • anishC5's avatar
    anishC5
    12 years ago

    hi All,

    I am happy to share the fact that we had finally managed to resolve this issue.

    We had problem trying to access the client via the VNETD port, so with help from symantec backline engineer we bypassed it. and directly connecting via BPCD port.

    the backups are now successful

    Thanks.

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    What EXACTLY do you have under client's Server entries in the registry?

    Use 'regedt32' (not regedit), double-click on Server - it will bring up a text-based window that you can copy.

    Please post entries here.

    Please note that NBU is case sensitive and entries must match reverse lookup exactly (server1.backup.local).

    Server1.backup.local != SERVER1.backup.local != server1 != server1.backup.local
     
    If any changes to DNS, hosts files and/or registry was made, please remember to clear NBU host cache on server and client:
    bpclntcmd -clear_host_cache
     

     

  • anishC5's avatar
    anishC5
    Level 5
    12 years ago

    hi marianne,

    please find the entries:

    nbu-not-clust

    nbu-not-node1

    nbu-not-node2

    nbu-not-med1

    nbu-not-med2

    From where do I check the reverse lookup please?

  • anishC5's avatar
    anishC5
    Level 5
    12 years ago

    hi Ranjanna,

    The TN was good and as checked we have everything in place.

    Please can u suggest that the client server is holding onto the master server entry even when I delete it from registry.

    Any ideas please where this entry could be?

    Thanks,

    Anish

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    You check reverse lookup from the client with:

    bpclntcmd -ip <server-ip>

    This command uses OS system call 'gethostbyaddr' to resolve IP to hostname (see http://www.symantec.com/docs/TECH27430 )

    You can see in client's bpcd log file that it is resolving the server's incoming IP address as server1.backup.local.

    You can also see that this server name does not exist in Server entries on the client.

    Add this hostname to Server entries (copy exact name from client's bpcd log & paste in registry entry.
    No need to battle with this for 2 more months!

    If you feel that reverse lookup is incorrect, check name resolution at OS level - hosts file as well as DNS.
    Remember to clear NBU host cache if any changes are made...
     

  • anishC5's avatar
    anishC5
    Level 5
    12 years ago

    thanks for your suggestions.

    Cleared the host cache after adding teh server entry to the "Server" tab in registry.

    restarted the services on client.

    still having failures.

    anyhting I have missed out please?

    EDIT: i will arrange to restart the server once and then give u the results.

    Thanks,

    Anish

  • mph999's avatar
    mph999
    Level 6
    12 years ago

    From the media  run nbdna script  on netbackup/bin/support

    nbdna -phase 2

    Do the same from the client - grab the results

    I'm with Marianne, some name resolution issue somewhere I suspect ....

    Martin

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    When Server entry matches EXACTLY the reverse lookup hostname that you see in client's bpcd log, your error will disappear.

    Please go through the TN in my previous post to verify hostname lookup.

    No need to restart client.

    If you don't feel comfortable sharing real entries in a public forum, please copy actual bpcd log as well as Server entries in the registry into a private message to one of us trying to help you.

     

  • Marianne's avatar
    Marianne
    Level 6
    12 years ago

    I am looking at your other post: https://www-secure.symantec.com/connect/forums/user-initiated-sql-backups-are-failing-230-though-policy-and-schedule-are-place

    If I read through the thread again, it seems that you have a backup network.

    Important to ensure that Public and Backup NICs have different hostnames.

    Add entries on local hosts files and also ensure that DNS is updated with separate hostnames for each IP address.

    Sample hosts entry on media server (lets say 192.168 is the public network and 10.10 the backup network):

    192.168.10.1 media1
    10.10.10.1 media1-bck

    Client:
    192.168.10.2 client1
    10.10.10.2 client1-bck

    Ensure that client1-bck is used in Clients tab of policy and that client has Server entry for media1-bck.

    PS: PLEASE update your other post as well?

  • anishC5's avatar
    anishC5
    Level 5
    12 years ago

    Hi Martin,

    The backup failed again and BPCD gave the same error code 46.

    We have around 3000 + servers in our environment.

    Is there any filter we can use in nbdna command only for this particular client please from the media server?

    Thanks

    Anish