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Unity Storage System - Backup and DR Testing Interface NDMP + Link Aggregation
Hello Community,
i have questions about the Backup and DR Testing Interface of Unity Storage System.
Following situation:
I wish to replicate synchronous a NAS server between UnityA and UnityB. On the desination UnityB, I want to Backup the file systems of the NAS Server via 3-way NDMP.
1. Is it possible to Backup the NAS server via Backup and DR Testing Interface on the desination UnityB via 3-way NDMP?
If it is not possible via the Backup and DR Testing Interface, what would be an valid option to do so?
2. Is it possible to create an HA Interface (Link Aggregation), wich should be used for async Replication and also the mentioned Backup and DR Tesing Interface. Each of them in different VLANs. I did not find anything, if it is allowed to use HA Interfaces for Backup and DR Testing Interface.
On the following PDF on page 12 is all i found regarding Backup and Test Interface:
On the following PDF on page 19 is nothing mentioned about the Backup and DR Testing Interface
BR
Mar-Blu
Rainer_EMC
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April 22nd, 2021 06:00
yes you can backup file systems on a destination NAS server using NDMP
yes you can use LACP if you dont use the interface for ISCSI
DELL-Sam L
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April 7th, 2021 16:00
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
Mar-Blu
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April 8th, 2021 00:00
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
DELL-Sam L
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April 8th, 2021 16:00
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.
Mar-Blu
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May 19th, 2021 03:00
Hello Rainer,
thanks a lot!
I have implemented and tested it.
1. So the Steps to do for NDMP Backup are:
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