topic Moving data to another volume non-distruptively in ONTAP Discussions

Moving data to another volume non-distruptively

Limor — Wed, 04 Jun 2025 10:09:10 GMT

Hello all,

FAS 8200, Data Ontap 9.7 pxx.

The setup is: one svm acting as a cifs server in activedirectory. Many volumes and many qtrees in them. Because of backup considerations I try to keep the volumes on 10T and less. Some of the volumes are getting close to the limit and I was wondering whether I can migrate qtrees to a new volume in a non-distruptive way.

Thanks,

Limor

The Hebrew University of Jerusalem

Re: Moving data to another volume non-distruptively

Ontapforrum — Thu, 11 Nov 2021 13:51:37 GMT

How big are the qtrees you are planing to move. I can think of ndmpcopy but "how long" is something difficult to predict. NDU is not possible for CIFS wether it is qtree/volume due to it's nature (unless it is continues share). I am not sure if this idea will work - flexclone->delete rest except the qtree you need --> split it...dosen't sound good, splitting for a large volume is very slow, so I wouldn't go that route.

I guess, use ndmpcopy or another tool (host side) to copy the data across. With ndmpcopy, you can do base line and an increment, shutdown cifs, do another incremental. Re-create shares and restat cifs. Let's see what others suggests, I am sure there will be other ways that I am not aware of.

Re: Moving data to another volume non-distruptively

Limor — Thu, 11 Nov 2021 14:54:16 GMT

The largest is around 3T, the rest are 1T and less.

What is ndmpcopy? where do I find it?

Re: Moving data to another volume non-distruptively

aladd — Fri, 12 Nov 2021 07:08:45 GMT

Information on NDMP copy from a Netapp system can be found here.

https://docs.netapp.com/us-en/ontap/tape-backup/transfer-data-ndmpcopy-task.html

Re: Moving data to another volume non-distruptively

Limor — Sun, 14 Nov 2021 11:26:47 GMT

Thanks, I'll try it.