Troubleshooting SQL Server AlwaysOn
http://blogs.msdn.com/b/alwaysonpro/
http://blogs.msdn.com/b/sqlalwayson
http://blogs.msdn.com/b/saponsqlserver/
http://blogs.msdn.com/b/saponsqlserver/archive/2015/10/23/sql-server-alwayson-summary.aspx
https://blogs.msdn.microsoft.com/psssql/tag/alwayson/
https://blogs.msdn.microsoft.com/sqlcat/tag/always-on/
https://msdn.microsoft.com/en-us/library/hh270278.aspx