How do I calculate how much power I need for my servers / switches / routers? This is needed when moving into a datacenter.
I figure I should just add up the wattage on all the power supplies even though all that power is not used most of the time, is that right? If there are redundant power supplies, should I count just one or both of them?
Best Answer
APC has a pretty decent power calculator here. It's certainly better than pen and paper calculations.