I have a Exchange 2013 environment configured in a DAG. I have two CAS servers and two database servers.
I would like to perform some Windows maintenance (updates) on the servers but would like to get some input on the best way to go ahead with this item.
I am running Windows Server 2012 R2 for the operating system.
I have not done this before so, I am doing my diligence to make sure I do not break the DAG environment.