How to properly shut down Windows Server 2008 R2 cluster?

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http://serverfault.com – We need to shut down MS Failover Cluster running on two nodes with MS Windows Server 2008 R2 Enterprise for hardware maintenance. I recently came across two possible approaches on how to shut down the cluster: First approach says to take the cluster resources offline and proceed to windows shutdown, on the other hand if you right-click on cluster name in FC snap-in under More Actions... you get Shut down Cluster... What's the difference between these two approaches? Which is the recommended way to shut down the cluster? Does it matter what kind of resource is running on cluster, i.e. MS SQL (HowTos)