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Vickie's avatar
Vickie
Level 6
11 years ago

error code 811 (failed to communicate with resource requester).

Hi All,
 
Backup of windows 2008 media server is failing with error code 811 (failed to communicate with resource requester).
Services are up and running fine, communication with Master server is fine.
Performed the Patch Repair already. NBU version 7.5.0.6.
Master Server : Unix, NBU 7.5.0.6
 
Drive are up, PBX is running and seems it installed correctly.
Performed Drive Configuration again, rebooted the server.
 
 
Regards,
Vickie
7.5
Backup and Recovery
NetBackup
Troubleshooting
UNIX

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  • Vickie's avatar
    Vickie
    Level 6
    11 years ago
    If I'll make the changes as it was and put the entry of required name in HOSTS file. Will that go to effect ?
    I mean after doing this entry, will the NBU consider that name mentioned in HOSTS file ?
     
  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    I am only now reading this thread properly:

     We had upgraded this server from 6.5.6 to 7.5.0.6 and configured it with the name i.e [eg xxxx.abc.com]. But now I changed it to use backup interface [xxxbu.abc.com].

    I did the change in Registry in [client] key, and updated the master server using [nbemmcmd -updatehost] command.
     
    NOT a good idea! Please bear in mind that NBU sees xxxx.abc.com and xxxbu.abc.com as 2 completely different media servers.
    Best to use nbdecommission to remove all xxxx.abc.com and assign all image ownership to xxxbu.abc.com.
    Hopefully you used the wizard to config device names and STU for xxxbu.abc.com?
     
    Add hosts entries in master and media server:
     

    Master:

    <master public IP> master.fqdn
    <backup-IP>   masterbu.fqdn
    <backup-IP  xxxbu.abc.com
    ......

    Media:

    <public IP> xxxx.abc.com
    <backup IP>  xxxbu.abc.com
    <backup IP>  masterbu.fqdn

     
     
     
  • Vickie's avatar
    Vickie
    Level 6
    11 years ago
    Issue resolved :
     
    I did follwing,
     
    1) Remove the media server entry from master server EMM.
    2) Remove server name entry from media server everywhere. 
    3) Added the names of media server again to all location (in Server,Client,Browser key).
    4) Added media server again to master server EMM.
    5) Clear host_cache.
    6) Reset media server.
    7) Bounce the services.
     
    After doing all steps, now the backup running fine.
  • Marianne's avatar
    Marianne
    Level 6
    11 years ago

    Thanks for the solution.

    As per my previous post - you should take special care when renaming media servers. NBU will see them as 2 different servers.

    Old name should be properly decommissioned and new name configured as new.

    Hope you have tested restores from backups done before the upgrade/rename?

  • Vickie's avatar
    Vickie
    Level 6
    11 years ago

    No Marianne, 

    As of now I did not do any restore, but I'll try it later on. Hope that'll work.

    Thanks for the suggestion.

    Regards,

    Vickie