Assume that you use AlwaysOn availability groups (AG) in SQL Server 2017 on a Pacemaker cluster. You may notice that Pacemaker fails to promote an AG replica to the master role and the following error message:
INFO: promote: ERROR: DateTime Could not promote local replica to PRIMARY role: RoleName: This operation cannot be performed on the availability group 'GroupName' because it has EXTERNAL cluster type. Use the cluster management tools to perform the operation.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.