At first I thought starting SQL Server in Single user mode is easy in Windows 2008 fail-over cluster. But I was wrong, If I just add ‘;-m’ in start-up parameter and starts it, the SQL server will start in single user mode via cluster. But we wont be able to log in. The cluster service logs in before us. And so we might see an error like below.
Login failed for user ‘Domain\user’. Reason: Server is in single user mode. Only one administrator can connect at this time. [CLIENT: xx.xx.xx.xx]
Now what do we do? Below is how I overcame this problem.