Our product team recently published AlwaysOn Availability Groups Troubleshooting and Monitoring Guide that provides information on troubleshooting the common AlwaysOn Availability Groups issues and monitoring the availability group health. We will try to keep updating this guide as new troubleshooting scenarios are documented so that you can conveniently find all the information in one place.
Some topics that are covered include:
Monitor Performance for AlwaysOn Availability Groups
Troubleshoot: Availability Group Exceeded RTO
Troubleshoot: Availability Group Exceeded RPO
Troubleshoot: Changes on the Primary Replica are not Reflected on the Secondary Replica
AlwaysOn: Useful Tools for Troubleshooting
Please share any feedback you may have on this topic.
Ramu (SQL Server Support Team)