Snapmirror across different networks/subnet

[ov12]

I have two clusters, both running ontap 8.3.1.

They're on two different networks on two different subnets, the remote cluster being the one that doesn't have intercluster lifs set up (and won't be either)

Is there a way to set up cluster peering in order to snapmirror, other than having ic lifs set up? Maybe something to do with routing?

Thanks

[SeanHatfield]

No intercluster lifs, no snapmirror.  The two clusters have to be able to communicate, and the snapmirror traffic runs over the intercluster lifs.  They can be routed.  Layer2 adjacency is not required.

[ov12]

I was told it could be routed over the data interfaces (for this example, cifs). I'm able to ping each cluster as well.

[JamesIlderton · Accepted solution]

You can only route replication traffic over data interfaces using 7-mode; cDOT does require you to use Intercluster LIFs.  You can create these on the same physical ports, if you don't have a spearate replication or management network you prefer to use.  You'll have to make sure you have these LIFs on all nodes of the clusters, even if they don't currently house data you are replicating - to account for both Storage Failover and Volume/LUN Move events.

[ov12]

Thank you so much for clearing that up!