Recently I faced interconnect failure at one of customer environment. Everything run smoothly until Monday morning I received notification event about interconnect link down.
Cluster Interconnect link is DOWN
In environment that I have pleasure to work with, we have fabric-attached MetroCluster configuration. Between filers there are double HA interconnect cable (attached to the FC switch) and the Heartbeat communication is served via MetroCluster FC-VI card. In case this single two ported card goes down, then we can talk about a little disaster, because without heartbeat messages between nodes we have guaranteed takeover.