NDMP backup confiuration

ndmp_authenticate_connection: ndmp_connect_client_auth failed

The error is between NetBackup and the NAS filer (VNX, Isilon, NetApp, etc)

It seems that you're trying to configure 3 way NDMP backup between NetBackup, the CIFS share on the filer and the DD system as a backup target. 

I hope this info helps you.  You can find more info in the NetBackup NDMP admin guide and in the filer's admin guide.
Most of the filers include examples for NetBackup, NetWorker, Commvault, etc.

1. Make sure that you have created and configured a NetBackup storage unit & disk pool which is defined to use the storage on the Data Domain system. 
   
   On the Data Domain system, you would have defined an Mtree or a DD Boost device which is also called a "storage unit". 
   
   NetBackup refers to the physical DD storage unit as a volume.  The volume is configured for a NetBackup disk pool which is managed by the NetBackup storage unit so that your media server can read from or write to the disk pool.
   
   
2. "etsi" asked "Where is the CIFS share?" because the NDMP backup is a client which connects to an NDMP server on the filer.
   
   The filer admin has to enable NDMP server & its services on the filer's data mover or node interface. 
   The admin would also set up the credentials that NetBackup uses to connect to the filer.
   
   After the filer is configured for an NDMP backup, you would add the NDMP server and the credentials to NetBackup
   
   
3. when the NDMP backup policy runs, NetBackup has to resolve the IP of the CIFS share that you're trying to backup.
   If it's a CIFS share, the file share is probably defined in DNS already.
   
   

You can verify the name resolution, connection & credentials via a command line from the NetBackup server.

After it's verified, you can create a NetBackup policy which uses a backup type of "NDMP".
The storage unit in the policy would be the name of the NetBackup storage unit with the disk pool on your Data Domain system.

This verification example is for a username "ndmpuser" and a filer called "myfiler":

root@netbackup/# usr/openv/volmgr/bin/tpautoconf -verify myfiler

Connecting to host "myfiler" as user "ndmpuser"...

Waiting for connect notification message...

Opening session--attempting with NDMP protocol version 4...

Opening session--successful with NDMP protocol version 4

host supports MD5 authentication

Getting MD5 challenge from host...

Logging in using MD5 method...

Host info is:

  host name "myfiler"

  os type  (the filer type will be displayed)

  os version (the version will be displayed)

host id "18f52daf-0029-11e3-9bbc-123478563412"

Login was successful

Host supports 3-way backup/restore