topic ndmpcopy authentication failed in Data Protection

ndmpcopy authentication failed

chi — Wed, 04 Jun 2025 16:11:20 GMT

Hi all,

I was working on ndmpcopy on Ontap 8.3.2.p2.

The cluster is running in vserver scope and the ndmp is on. The ndmp protocol is enable on the vserver.

I run ndmpcopy and got the authentication failed message.

cluster::> node run -node node ndmpcopy -sa ndmpuser:password -da ndmpuser:password source-ip:/vserver/volume dest-ip:/vserver/volume
Ndmpcopy: Starting copy [ 44 ] ...
Ndmpcopy: source-ip: Notify: Connection established
Ndmpcopy: dest-ip: Notify: Connection established
Ndmpcopy: Authentication failed for source
Ndmpcopy: Done

Thanks,

Chi

Re: ndmpcopy authentication failed

Kannan_DWA — Thu, 05 Jan 2017 21:22:45 GMT

Make sure that ndmp services enabled for the node.

system services ndmp on -node node-name

system services ndmp show # to see the status

Re: ndmpcopy authentication failed

chi — Fri, 06 Jan 2017 20:52:20 GMT

Hi,

after enabled the node ndmp, I still got the Authentication failed for source error message.

Chi

Re: ndmpcopy authentication failed

Biswarup_D — Sat, 07 Jan 2017 10:35:50 GMT

Hello Rich,

The command is bit incomplete..

First try to create a NDMP user on both the clusters for the concerned VSERVER. Then genearate a password on both sides.

Use :

ndmp generate-password command

then use the usual command u are using.. Just add the NDMP user id and password instead of the one u were using previously... Cheers..!!!!

Re: ndmpcopy authentication failed

chi — Mon, 09 Jan 2017 18:28:34 GMT

Hello,

I have to use command to let system create user and generate password then ndmpcopy works.

Thank you.

Chi