SQL2K8/W2K8 and physical disk resources

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I wonder if my interpretation of the "offline" status given (in
diskmgmt.msc) to a drive just added to a W2K8-based SQL cluster is correct.
Let's say I allocate a brand spankin' new drive on my SAN and present it
simultaneously to the nodes. I note right away that it's in 'offline'
status. Does that mean it's protected from both nodes until I can create a
partition and format it? Or do I still need to follow the procedure normal
for W2K3 of presenting the drive to only one node?

When I use FCM to add the drive to the node is it the same as using
Cluadmin.exe to create a physical disk resource?

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