Forum Discussion

rVikas's avatar
rVikas
Level 5
10 years ago

Client communication with media but not with master

Hi Team,

Till now in backup infrastrcutre, i have seen client , master and media server and storage devices can communicate with each other.

there is one query raised.

what if i have situation like;

Clients and media server can communicate 

Media and master server can communicate.

but

I wont be ablt to ping client from master server.

Will backup work in these kind of scenarios.

 

 

 

 

 

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  • RamNagalla's avatar
    RamNagalla
    10 years ago

    yes.... it will work only if they are File systems bakups schedules from Master servers..

    any kind of client request does not work (like restore from client, user backups, DB backups etc.. ) also can not update the configuraitons from Mater server..

    but File system backups still work as long as you have the good communication between the media server and client.

  • Nicolai's avatar
    Nicolai
    Moderator
    10 years ago

    Master server contact client to resolve the "ALL_LOCAL_DRIVES" directive  I have been told. So backup will likely fail.

    Now, just because ping doesn't work, it doesn mean master server can't talk to client. Firewall usually filter off ICMP (ping) packages.

    To test for connectivity use Netbackup command bptestbpcd

    How to use bptestbpcd:

    http://www.veritas.com/docs/000029625

  • RamNagalla's avatar
    RamNagalla
    Moderator
    10 years ago

    yes.... it will work only if they are File systems bakups schedules from Master servers..

    any kind of client request does not work (like restore from client, user backups, DB backups etc.. ) also can not update the configuraitons from Mater server..

    but File system backups still work as long as you have the good communication between the media server and client.

  • nbutech's avatar
    nbutech
    Level 6
    10 years ago

    As mentiioned earlier ping is not necessary the reason for backup failure as ICMP might be disabled

     

    But yes if the other required NBU ports are open then backups should work

     

    You can telnet the bpcd ,vnetd and  pbx port to verify if those ports are open

     

  • sdo's avatar
    sdo
    Moderator
    10 years ago

    ping is not a NetBackup comms test.

    Use this on the master:

    bptestbpcd -verbose -client myclientname

    Use this on the client to get client to reach out to master and what this does is ask the master to report back to client a response to:   "Hey master server, who do you think I am?"

    bpclntcmd -pn

     

  • rVikas's avatar
    rVikas
    Level 5
    10 years ago

    Thank you all for the response

    In this configuration, i am told that client wont be able to communicate with master server at all.

    @Ram,

    As you said file system backup will work.

    What if i have application backup like exchange, sharepoint, oracle, will that also work?

  • Marianne's avatar
    Marianne
    Level 6
    10 years ago
    Database backups will not work. Db backups generate comms from client directly to the master. Filesystem backups will work where the file list is specified in Backup Selection, not ALL_LOCAL_DRIVES. For Windows backups, snapshot backups must be disabled as the client needs to update snapshot info on the master. Please have a look at the various process flow diagrams in the Logging Assistant Guide. You will see where comms are needed between master and client. http://www.symantec.com/docs/DOC8600
  • areznik's avatar
    areznik
    Level 5
    10 years ago

    ALL_LOCAL_DRIVES does work without communications with the master, tested on 7.6.0.4 and 7.7.1 with Windows and Unix clients/policies. It will NOT work if you have multistreaming enabled on the policy. 

  • RamNagalla's avatar
    RamNagalla
    Moderator
    10 years ago

    Expect file system bakups(with out Mulit streaming).. nothing will work...