SQL Always On Availability Group - Detect Failover Event

This script searches the ACTIVE SQL Server Log for specific text related to an AlwaysOn Availability Group Failover event. According to Microsoft documentation, the text "RESOLVING" relates to a failover event.

 
 
 
 
 
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Databases
6/29/2019
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Verified on the following platforms
Windows 10 No
Windows Server 2012 Yes
Windows Server 2012 R2 Yes
Windows Server 2008 R2 No
Windows Server 2008 No
Windows Server 2003 No
Windows Server 2016 Yes
Windows 8 No
Windows 7 No
Windows Vista No
Windows XP No
Windows 2000 No
This script is tested on these platforms by the author. It is likely to work on other platforms as well. If you try it and find that it works on another platform, please add a note to the script discussion to let others know.