Hello Mar-Blu,

Here are some links to some KB’s that maybe of assistance.

https://dell.to/3rWD5Xd

https://dell.to/3msELGY

https://dell.to/2OsH8Nm

Hi DELL-Sam L,

thanks for your reply. I already found this informations. 

1. In this KB (https://dell.to/2OsH8Nm) it is mentioned, that the Backup and DR Interface should be created on destination NAS server. 

"For NFS, FTP/SFTP, or NDMPCopy access, a “Backup and Test” interface must be created on the destination NAS server." 

But is it working for 3-way NDMP Backup? 

2. So LACP should be allowed for all kind of network interfaces withouth iSCSI Interfaces. 

https://www.dell.com/support/kbdoc/de-de/000022781/dell-emc-unity-how-to-configure-link-aggregation-user-correctable?lang=en&dgc=SM&cid=338584&lid=spr4709610373&RefID=dtw21_spr4709610373&linkId=115611880

Best regards,

Mar-Blu

Hello Mar-Blu,

It should be for three-way.  Have you looked at the Dell EMC Unity Family Configuring NDMP Backups guide? If not here is a link to the guide. https://dell.to/3wyRmgm

You want to use Link Aggregation on the ports that you are using for your NAS server interface.  You don’t want to use Link Aggregation on iscsi ports.

Hello Rainer,

thanks a lot!

I have implemented and tested it.  

1. So the Steps to do for NDMP Backup are:

• Configure NAS Server
• Configure File System
• Replicate File System to Destination Unity
• Assign Backup & DR Interface to target NAS Server
• Enable NDMP on target NAS Server and set password for ndmp user 
• Further Configuration is done in Backup Software 

2. The same LACP Interface can be used for Prod INterface of NAS Server and for Backup and DR Interface. Notice to configure LACP on network Switches.  

BR,

Mar-Blu