topic Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE in ONTAP Discussions

CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

itpers — Wed, 04 Jun 2025 21:43:20 GMT

Hello thanks for giving me a chance to discuss in this forum

How to convert snap mirror replication from asynchronous mode to sync mode.......

Can i do it graphically? Or else do i need to login to console.....

In one of the forum , i saw editing snapmirror.conf will solve the problem. But how to edit it? i cannot find rdfile or wrfile command working,,,

Is direct editng file affects our prodcution environment or replication ?

Any help in this regard is greatly appreciated

thanks and regards

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

ghislanzoni — Mon, 21 Mar 2016 14:47:39 GMT

Hi,

to converto a async snapmirror to sync mirror you can follow this guide:

https://library.netapp.com/ecmdocs/ECMP1368826/html/GUID-91528A74-2E1B-4CF7-B73E-B9F14A646C50.html

You need to edit the snapmirror.conf (you can edit it via the c$ share, of the node, with es. notepad++) with this example:

systemA:volA systemB:volB - sync

There are many consideration and limitation to do the sync snapmirror, I suggest you to carefully read this documentation : http://www.netapp.com/us/media/tr-3326.pdf

Regards

Roberto

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

itpers — Mon, 21 Mar 2016 17:56:35 GMT

It means to say, suppose i am using two node cluster, how to can i access c$ of the node?

. At present i am login through console using putty with cluster management IP

THANKS

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

aborzenkov — Mon, 21 Mar 2016 18:23:55 GMT

cDOT does not support synchronous snapmirror at all.

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

Naveenkumarp22 — Tue, 22 Mar 2016 05:39:31 GMT

You don't have sync option on Cluster data ontap.

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

itpers — Tue, 22 Mar 2016 05:50:53 GMT

Hello all,

Mine is ONTAP 8.3.2 , FAS2552 . sO yoy mean to say , that there is no sync mirror option in my configuration.

regards

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

Naveenkumarp22 — Tue, 22 Mar 2016 06:07:47 GMT

Cluster data ontap will not support for snapmirror sync.

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

aborzenkov — Tue, 22 Mar 2016 06:16:27 GMT

"Synchronous SnapMirror" != "sync mirror". In cDOT you have option for SyncMirror, but you do not have support for Synchronous SnapMirror.

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

Naveenkumarp22 — Tue, 22 Mar 2016 06:25:23 GMT

I think he is asking about snapmirror synchronous.

Re: CONVERT SNAPMIRROR REPLICATION FROM ASYNCHRONOUS MODE TO SYNCHRONOUS MODE

ghislanzoni — Tue, 22 Mar 2016 08:10:47 GMT

I was wrong to understand.

If the system is in Cdot snapmirror sync is not yet supported.

The only way to replicate data in sync mode between two site (with a specific configuration) is now the Metrocluster Cdot.

Regards

Roberto