Definitely. Without a doubt. Been there, have the scars.
And that's a platform independent situation. Not just on Power equipment
but on totally unrelated stuff.
But, there will be those who will argue that someone coming from a S/36
will still notice better performance even with a 3 drive raid set and will
gag at the price of an extra drive when they're only using 30% of their
Sucks to be them.