How to create a DAG in Exchange Server 2013 SP1 without AAP

Share this:

In this Tutorial we are going to use a new feature introduced in Exchange Server 2013 SP1 which is the capability to create a DAG object without an AAP (Cluster Administrative Access Point) which reduces complexity where a cluster name object (CNO) is no longer required when using his new configuration.


This Tutorial must be applied to new deployments, please do not change an existent DAG because that is not supported and it will create issues.

The DAG without an AAP reduces the complexity but has some points that must be validated by the Exchange Administrators before deciding to use it, as follows:

  • The Active Directory requirement is reduced which means no more CNO (Cluster Name Object) to create a DAG
  • There is no IP assignment
  • There is no way to manage your cluster using the Cluster Failover Manager which means that PowerShell is your best friend in this scenario
  • If you are using a disjoint namespace, then check this following Tutorial:
  • Like any new feature, make sure that you test and validate well before moving to production in your environment
  • You must check all your applications in use Today to make sure that they are compatible with a DAG without AAP, and that includes Backup software, AV and so forth.

Creating a new DAG without AAP…

Since we don’t have to worry about CNO objects, we can go straight to Exchange Admin Center (EAC) as administrator, click on servers and then database availability groups. Click on + (add) icon.


We need to define a new name for the DAG, the witness server and the witness directory, the difference here is that for the IP address we must use the IP and that is the setting that defines a new DAG to be configured without AAP, after that click on save.


Wait for the process to complete and the new DAG will be available on the database availability groups area.image6

Just in case.. using Failover Cluster Manager…

Bear in mind that the Failover Cluster Manager is no longer valid to manage this new type of DAG, if you try to open you will receive an error message similar to the one below.



In this Tutorial we went over the steps to create a DAG without AAP using Exchange Admin Center and this procedure can be used on Exchange Server 2013 Service Pack 1 and later versions.

Written by Anderson Patricio

Anderson Patricio

Anderson Patricio is a Canadian MVP in Cloud and Datacenter Management, and Office Server and Services, besides the Microsoft Award he also holds a Solutions Master (MCSM) in Exchange and several other certifications. Anderson has been contributing to the Microsoft Community with articles, tutorials, blog posts, twitter, forums and book reviews. He is a regular contributor here at,, and Anderson (Portuguese).

Related Post

Error: Parameter name collection during Edge Trans... If you are using the built-in scripts to clone Edge Transport configuration in Exchange Server 2013 you may encounter this following error when runnin...
Creating multiple mailboxes using Exchange Managem... In Today’s Tutorial we are going over a simple task which is to create several mailboxes using Exchange Management Shell. This Tutorial may be useful ...
How to Enable/Disable Malware feature in Exchange ... In this Tutorial we are going over the process do enable and disable malware feature in Exchange Server 2013. We can manage malware features during th...
Managing DAG: Adding nodes and DAC mode In this Tutorial of our Managing DAG in Exchange Server 2013 series we will be adding additional nodes to our newly created DAG and also configuring i...