Description

For databases utilizing Availability Groups. Used internally while Windows Failover Clustering is waiting for notifications. This is an idling wait so high values are expected and generally safe to ignore

Resolved by

DBAs

Suggested solutions

1. Check the SQL Server error log for more information
2. Examine wait statistics on the instance for other Availability Group issues. Investigate accordingly

Additional research

AlwaysOn Availability Groups Troubleshooting and Monitoring Guide

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