Clustered Active/Active in Single-user mode

What is the right procedure to start an instance of a clustered Active/Active Sql Server ?
The online-book unspecifically writes:
From a command prompt, enter:
sqlservr.exe -c -m
But some KB Technet articles say do start/stop SQL instance only from cluster administrator!
So how to do it ?
Thanks!
Michele Moglia
For normal operating procedures the proper method is to start from the
Cluster Administator.
Starting from the command prompt with sqlservr.exe -c -m is a trouble
shooting technique. It starts SQL Server as an application in single user
mode and as such would be pretty useless in a production environment.
Rand
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|||Ok but if I have to restore the master db of the clustered sql server instance
I have to start the instance in single-user mode so can I start from command prompt
without any fear or problem ?
Thanks
Michele Moglia