This may sound somewhat strange but what I actually mean is do you actively run your production servers on alternate nodes? Generally I will run alternate nodes based around application releases where we have an agreed outage. Just this last week it was brought home on just how you can get caught out when you fail over a cluster, although I don’t actively manage this cluster  and the precise details of the issues are of no significance the fact remains that the decision to run on “the other...(read more)

http://sqlblogcasts.com/blogs/grumpyolddba/archive/2016/03/31/do-you-fail-over-your-clusters.aspx