Clustering with 2 active nodes and 1 passive node

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Normally, clustering is setup as a 1-to-1 relationship between active and
passive nodes, at least that is my understanding. We have a situation where
we are being asked to setup a 2 active node, 1 passive node environment.
Here's the question - if one of the active nodes fails, it fails over to the
passive node. Now what happens if the 2nd active node fails? Will the other
active node (originally the passive node) handle the failover or will it try
to failover to the first active node that failed or will the whole thing just
grind to a screeching halt? I know we can setup a 2 active/ 2passive node
setup, but we wanted to research the 2-to-1 possibility as well.

Thanks!


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