topic Re: snapmirror source volume size (resize) - will the destination vol resize too? in ONTAP Discussions

snapmirror source volume size (resize) - will the destination vol resize too?

maskajan09 — Thu, 19 Dec 2019 14:55:15 GMT

Hello

I found some post here about this but it is still not clear to me. ONTAP 9.5P3. SVM snapmirror DP.

1) if I resize the source volume is it going the destination vol resize accordingly? What must be set to make it work?

2) is there any special procedure how to resize snapmirrored vol to resize the destination accordingly?

3) I cannot find such an obvious task described in any doc. Is there any doc that describes this?

Thank you

Re: snapmirror source volume size (resize) - will the destination vol resize too?

mjdalton1 — Thu, 19 Dec 2019 15:34:03 GMT

Volume autosize can be your friend. This needs to be enabled on both sides if you use it.

https://docs.netapp.com/ontap-9/index.jsp?topic=%2Fcom.netapp.doc.dot-cm-vsmg%2FGUID-ECE453FE-D158-4BDA-9851-6B8780474E11.html

Re: snapmirror source volume size (resize) - will the destination vol resize too?

SpindleNinja — Thu, 19 Dec 2019 15:38:11 GMT

Give this a read through: https://kb.netapp.com/app/answers/answer_view/a_id/1073852/loc/en_US

And just to verify, you mean Snapmirror DP relationship. not SVM-dR or XDP?

Re: snapmirror source volume size (resize) - will the destination vol resize too?

maskajan09 — Thu, 19 Dec 2019 15:46:23 GMT

The autosize-mode on dest is grow_shrink and on source is off. So I would say that it is enough to have it on dest only but I suspect that it must be also on source, right? Why?

Re: snapmirror source volume size (resize) - will the destination vol resize too?

mjdalton1 — Thu, 19 Dec 2019 18:31:24 GMT

I was stating both sides for simplicity. Your configuration should be OK to add storage to the source and allow the destination to autogrow.

Re: snapmirror source volume size (resize) - will the destination vol resize too?

maskajan09 — Fri, 20 Dec 2019 10:15:33 GMT

Well it is SVMDR relationship. So it is not that easy. But there is a command int KB for this. Hopefuly it will work...

Re: snapmirror source volume size (resize) - will the destination vol resize too?

liu — Thu, 16 Jan 2025 08:50:57 GMT

Depends on whether the relationship is of type DP or XDP

In the case of XDP, automatic resizing is controlled by the target volume. autosize-mode

The SVM DR Target volume cannot be changed if it is DR ONTAP System Manager

How to modify SnapMirror destination volume size and other attributes - NetApp Knowledge Base

How to modify size and other attributes for volumes involved in a SVM Disaster Recovery relationship - NetApp Knowledge Base