Ok, so we created DAG for Exchange and we now have Database HA/Redundancy for our Exchange server. In this guide we are going to make our OWA and Autodiscovery Highly Available in a specific way – through ARR.

This isn’t mandatory, you can make you OWA, Autodiscovery available in other ways, but the way I’m going to show you in this guide you will get some extra security and additional protection layer for your Exchange. In package with HA ofcourse.