Monitoring AlwaysOn Availability Groups
Once you have implemented Availability Groups, you need to monitor them and respond to any errors or warnings that could affect the availability of your data. If you have many availability groups implemented throughout the enterprise, then the only way to monitor them effectively and holistically is by using an enterprise monitoring tool, such as SOC (Systems Operations Center). If you only have a small number of availability groups, however, or if you are troubleshooting a specific issue, then SQL Server provides the AlwaysOn Dashboard and the AlwaysOn Health Trace. You can also create your own Extended Events sessions to monitor Availability Groups. This chapter will discuss each of these monitoring possibilities.