[CentOS] OT: Measure 2U Server Amp Usage

Dan Pritts wrote:
> Depending on your application, overprovisioning your power might not
> be a bad thing - next year's servers will probably use more.
Next year's servers will probably use less power.

Of course, next year you will probably have to increase your capacity 
10-fold, so that 20% power reduction will not amount to a hill of beans.