Unfortunately, one of the things we don't automatically trigger a failover on in our first Clustered Failover release will be a "normal" interface link failure (OTOH, if a NIC fries its PCI slot, we will failover).
When that happens, is the entire filer shut down and control
transferred to the filer,
I assume that by "fries its PCI slot" Val meant "fries its PCI slot so badly that the whole machine dies", in which case the failover occurs *because* the entire filer shut down.
We don't do failover to the cluster partner if one particular component of a machine dies but leaves the machine still running.