Symptoms
Assume that you use Always On availability groups (AG) in Microsoft SQL Server 2017 on a Pacemaker cluster. You stop the fencing function by disabling the STONITH device. When you then stop one of the nodes in the cluster, the Pacemaker doesn't detect the stop and can't manage the node resources in the cluster.
Resolution
The fix for this issue is included in the following update for SQL Server:
About SQL Server builds
Each new build for SQL Server contains all the hotfixes and security fixes that were in the previous build. We recommend that you install the latest build for your version of SQL Server:
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
References
Learn about the standard terminology Microsoft uses to describe software updates.