SQL Server Clustering time on Node

I was asked to find out when the last time my sql server instance had failed over on the cluster. I thought mm I should be able to get this from a dmv or something but I could not find out how. Looked at the cluster dmv’s and just did not find what I am looking for. Threw the question out on #sqlhelp and I got two answers and they are both simple and I did not even think of them. I was trying to hard to figure it out and did not think to look at the simple things. @sqlpoolboy had both answers for me.

1. Check the created date of Tempdb – So simple and it makes so much sense. Since tempdb is re-created everytime the instance starts that would tell me when.

2. Since I am running SQL Server 2008 he provided this query for me as well.

SELECT sqlserver_start_time FROM sys.dm_os_sys_info

Both are pretty simple but I never would have thought of option 2 but I am kicking myself for not getting option 1.

Thanks again