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Assume that you have an Always On Availability Group (AG) that is a Windows Server Failover Cluster (WSFC) cluster type in Microsoft SQL Server 2017. When you run the select sys.fn_hadr_backup_is_preferred_replica('<YourDatabaseName>'), query , you receive an error message that resembles the following:

Msg 41070, Level 16, State 1, Line LineNumber

Configuration data for the availability group with Windows Server Failover Clustering (WSFC) resource ID '<ID>' is not found in the WSFC data store.  The availability group may have been dropped, or a previous CREATE AVAILABILITY GROUP or DROP AVAILABILITY GROUP operation has failed.  Please use DROP AVAILABILITY GROUP command to clean up previously failed operations before retrying the current operation.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


On-Demand Hotfix Information:

This issue is fixed in the following on-demand hotfix for SQL Server:

Cumulative Update Information:

This issue is fixed in the following cumulative update for SQL Server:

About cumulative updates for SQL Server:

Each new cumulative update for SQL Server contains all the hotfixes and all the security fixes that were included with the previous cumulative update. Check out the latest cumulative updates for SQL Server:


Learn about the terminology that Microsoft uses to describe software updates.

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