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can i change IP address for master server

Created: 21 Jun 2012 • Updated: 22 Aug 2012 | 5 comments
This issue has been solved. See solution.

Dear Expert,

the Network departement need to create a zone for master server and ask to change the IP address for the master.

Can i change the IP address for the master server?

is there a risk like the backup we have already available will corrupt?

Are there any procedures to change the IP else change on hosts files on all media and client?

i have Win 2008 R2, NBU

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mph999's picture
As long as the 'hostnames' you have now correctly resolve (forwards and backwards) an IP address channge will make no difference.
Do empty the cache though.  bpclntcmd -clear_host_cache
I would run nbdna after the change to makes sure everything resolves.
Regards,  Martin
Setting Logs in NetBackup:
Nicolai's picture

After changing IP I  wold wait 10-20 minutes before starting Netbackup so IP changes are replicated to all DNS servers. If really long TTL (server time to live) are defined more time may be required.

Assumption is the mother of all mess ups.

If this post answered your'e qustion -  Please mark as a soloution.

SYMAJ's picture

I did this very recently, and followed this procedure:

Shutdown all media servers

Stop NBU services on Master

Change IP address on Master

Update DNS to reflect new IP address with Master Server name

Re-boot Master Server

Restart all media servers

Doing the above removes the need for clearing any cache etc.

All worked out fine.


Mark_Solutions's picture

Agree with all of the above - just one thing that may catch you out ....

Hosts files - lots of people use them, especially with clients across firewalls so keep an eye on any failures that ocurr after the change

But changing the IP address will have no effect and will no corrupt your NetBackup installation - just look for backup failures afterwards, check hosts file and do a bpclntcmd -clear_host_cache on clients that fail (or an ipconfig flushdns)

Hope this helps

Authorised Symantec Consultant . Expert Partner.

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muhanad.daher's picture

thank you Mark for you info :)


Muhanad Daher

Senior Data Center Engineer