Intercluster communications are for communicating between clusters.

The Cluster Network (the private 10G switches) are used for Intracluster activities.
i.e. local communications stay on the cluster network.

So, any communications from Cluster na101 to/from Cluster na201
will always go through the InterCluster LIFs.

Therefore, if the communication is from 
na101:node1 to na201:node1 it will be 1Gig
na101:node1 to na201:node2 it will be 1Gig
na101:node1 to na201:node3 it will be 1Gig
na101:node1 to na201:node4 it will be 1Gig
na101:node1 to na201:node5 it will be 1Gig
na101:node1 to na201:node6 it will be 1Gig
na101:node5 to na201:node6 it will be 10Gig

In other words, if your mirror source/destinations are on nodes 5/6 then you will use 10Gig.
If your mirror source/destinations are on anything but those two nodes, you will be using 1Gig.

--tmac

Tim McCarthy, Principal Consultant



On Tue, Jun 28, 2016 at 6:03 AM, Momonth <momonth@gmail.com> wrote:
On Tue, Jun 28, 2016 at 10:57 AM, andrei.borzenkov@ts.fujitsu.com
<andrei.borzenkov@ts.fujitsu.com> wrote:
> You confuse cluster interconnect 10G switches and intercluster peering.
>

"You" here is me (Vladimir) or John?

> I am actually surprised that such simple question is apparently even not understood. Let's try to ask differently - which local and remote LIFs are selected by Data ONTAP when it connects to another cluster? What are rules?
>

According to the documentation nodes of local and remote clusters
setup full-mesh connectivity, so LIFs are involved on both sides.

Cheers,
Vladimir
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