I have been studying Cluster voting and AlwaysOn failover. The topic of split-brain comes up and sounds terrible. This following from Microsoft seems to indicate that only a person with SA, doing something stupid can cause it.
When more than one subset of voting nodes is able to establish a quorum on its own, that is known as a split-brain scenario. In such a scenario, the nodes in the separate quorums may behave differently, and in conflict with one another.
The split-brain scenario is only possible when a system administrator manually performs a forced quorum operation, or in very rare circumstances, a forced failover; explicitly subdividing the quorum node set. Source
There are a lot of variables, and I wonder if something like changing the Dynamic quorum (is on by default) could create a scenario where a split-brain scenario exist.
Can auto failover be configured so a split-brain scenario is possible?
I want to know, so that if it is possible I won't configure that way.