Beating the PUE Acronym to Death

| CTO Edge (Sep 15 2010) Servers

1. By now everyone involved in the data center has heard about the Power Usage Effectiveness (PUE) metric that was originated and defined by The Green Grid. In an interesting marketing ploy, Trendpoint has come up with the concept of “Micro PUE.” They claim that “Micro PUE” represents the performance of individual CRAC systems by measuring the input energy vs. the actual cooling delivered in BTUs. Not coincidentally, they manufacture a monitoring unit (Envirocube) that they say will measure the actual cooling delivered by a data center CRAC. They go even further: If one accepts their premise of the existence of “Micro PUE,” then they now can introduce by inference the term “Macro PUE,” which they postulate is really a better term than just PUE, since they hypothesize that PUE really reflects the data center’s cooling efficiency (“This paper has shown that PUE is essentially a measurement of the cooling ... (Read Full Article)

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