I currently manage 5 AlwaysOn Availability Groups. Two are on SQL Server 2014 and overdue for an upgrade, while three of them are on SQL Server 2017. From time to time I have run into a couple of different situations that I needed to troubleshoot and I want to tell you where to look and what to check on in these scenarios. I can’t possibly tell you about everything that could go wrong, but I can tell you about my experience with AlwaysOn Availability Groups and let you decide if that experience helps you or not.
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