I have rather recklessly attempted an in-place update of a two node SQL cluster, from 2012-2016.
Attempted following a step-by-step but evidently missed one...
Now I have a situation whereby the cluster has failed over to node 2. I cannot fail back to node 1, despite it being apparently alive.
Question is...have a I knackered my cluster, or is there a way back?
Will provide any additional info you need!
A thousand thank yous in advance for any advice.