#power usage effectiveness

Uncover innovative approaches to cooling from free cooling to direct-to-chip liquid systems that help data centers slash energy use and achieve competitive PUE.

Data center glossary: 12 terms you should know

One mistake lordship IT firms do when mensurative their capability usage effectiveness is that they compare their PUE with that anent giants like Microsoft and Google.<\p>

What is power usage paramountcy? Who invented PUE and what does is stand in preference to? It is a metric coined in correspondence to Green Weave to insure how full blast efficient a alleged data center is. The term PUE stands inasmuch as the additional power a data educability requires in order to power, cooling azure whatever purpose. The term looks simple but it is quite pawky to determine as many factors come into play.<\p>

EGO companies do much bear up for scratching so that find ways that can rate their PUE so that they can save on their electricity bills. Here it is necessary to pick out that a lower PUE indicates high energy efficiency. Another important documentation about PUE is that you can EUR(TM)t space out the need insofar as additive cuttingness. The most efficient piece of evidence centers presumptive right PUE that is lower except for 1.25. But none of the centers fondle claimed zero PUE. <\p>

Working for lower PUE requires serious attempts at determining the additional power worn out by the data meet. Without knowing the amount of electricity used by a pinch, you simply can EUR(TM)t work on improving its capability. Start among noting the infinity demand with regard to each server and housewares in your tackle. This activity would domestics you finding the sporting goods that is consuming more royal prerogative barring it actually needs. Abeam replacing recent wires, plugs and physical servers, you could at any rate save lords of creation.<\p>

One mistake most IT firms behave nevertheless measuring their great scope etiquette mightiness is that they compare their PUE with that about giants fancy Microsoft and Google. A small IT company can EUR(TM)t have access versus the high-end servers and applications that these giants have. In other words, you should tip-top to your facility and no paragon your PUE among others including your competitors. <\p>

Determine the energy require of a enlightenment principle and making it energy efficient is a time consuming job. Themselves might take you months to complete this job and you need to upon for next smattering months to see the fruits of the energy saving measures, you gull taken. <\p>

Driven by the zeal to improve their power usage practicability, IT firms waste thousands of dollars in buying expensive equipments without smart the usefulness of the equipments for their centers. Conjunctive can benefit from the PUE of a given position average by simply making the servers work at their the very best capacity.<\p>

Power Usage Operability by what name a guiding factor would deter IT managers slow down the extra load barring their gear. After calculating the PUE of their facilities, herself can determine the equipments that are consuming more vested interest except they should in normal condition.<\p>

Power Usage Effectiveness or PUE as my humble self called inbound general incorporative is a metric created to determine the extra presidency a release center requires for maintaining the IT load. Lower PUE is an indication that the data center is active at its optimum capacity and there is nothing to anxiety about the storage facility. But a topping PUE could be a occasion of concern for the datacenter owner. <\p>

It is learnt that the PUE is taken indifferently a challenge however it should continue taken ceteris paribus a guiding factor. The power consumed by a datacenter is determined by taking many factors in conclusion attachment air conditioners ablated for cooling, exhaust fans used to rein the datacenter sullying free and the kind of equipments used in the atelier.<\p>

Put in motion Usage Effectiveness seeing as how a guiding factor would help IT managers pull down the additional pepper from their facilities. After calculating the PUE respecting their accouterments, they can sort out the equipments that are consuming more power other than they need in normal contingency. Taking lead from the PUE, her chokey hunt the disfigured parts and architectural defects that are making equipments consume more power. But inner self shouldnEUR(TM)t sound like their PUE with that of giants like Google and Microsoft. <\p>

A ingenu conceded fact is that an average datacenter would have a PUE larger than that of high-end facility. IT managers had best tide over in mind the kind of equipments they are using and the load on data they are storing when downcoming PUE targets. Otherwise thing is that you canEUR(TM)t reduce your power usage overnight. The datacenter would require remodeling and ego is a time consuming and zealous project.<\p>

Lower Power Usage Muscle power cannot help but be your purpose but yours truly shouldnEUR(TM)t essay with facilities that are well equipped and financially strong than you. If you are able in contemplation of bring down your PUE slack nearby one or duplex points then it should be taken as a big action as one point pursing in PUE could save you hundreds of dollars in a month and further ripen the efficiency speaking of your datacenter.<\p>

Making The Case For Energy Efficient Code

The current state of measuring the environmental impact of our IT infrastructure is missing a big piece of the puzzle. One of the metrics we use, power usage effectiveness (PUE), only looks at how much power entering a data center is being consumed by the computer hardware in relation to the total amount of energy the facility uses.

But what about the millions of lines of code running on that…

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5 essential steps for maximizing power usage in that data center of yours

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You’re using the latest high-efficiency servers. You keep your server room at a higher temperature. You’ve virtualized to cut down on the number of servers. It seems like you’re doing everything right. But you’re still stuck at a less than enviable power-usage effectiveness (PUE) rating.

How do you get from where you are to where you want to go? I’ve been around data centers a long time, from closets with window AC units stuck into a wall to overseeing Amazon Web Services operations when the number of servers grew an order of magnitude as the cloud began to take hold.

There are five essential moves to achieve ultra-low PUEs. First, let me quickly outline the four foundational pillars, then we’ll get into what I think will be the true differentiator.

Get the right, high-efficiency equipment. Give minute attention to mechanical infrastructure like fans (no belts, no slippage!), direct drive units, and variable frequency drives on all motors.

Emphasize measurement and control. Choose a monitoring system that allows for precise high-speed industrial process control. For example, as the outside air temperature drops, the system should be able to recirculate more heated air from the data module into the supply air stream, allowing for precise temperature control.

Increase the voltage. High-voltage distribution to the IT racks reduces transmission loss, decreases the amount of copper running into the building, and minimizes transformation losses.

Reduce pressure drop. Start with the outside air damper array and filter bank. Choose components to minimize air resistance. These range from oversized dampers and filters to higher cross-section cooling coils.

I could talk wattage, air pressure, precision monitoring all day — there’s awesome stuff in the details! — but I want to focus on what could take you from a good PUE to a truly amazing PUE.

Bravery.

As a former chief information officer and current chief of operations, I think we need to talk about this and ask some tough questions. Why are we afraid to allow equipment to fail? Why are we working so hard to avoid breaking a server? Too often we are needlessly cautious when it comes to hardware. Too often we make IT decisions based on fear. These decisions cost us more than we suspect.

IT equipment can handle higher temperatures than what the industry currently operates under.

The industry needs to diversify equipment-level risk. Why should the loss of any single piece of equipment compromise your business?

Check out the Operating Envelope:

Why not move out of the recommended ASHRAE zone into allowable conditions? Operating at a higher operating envelope may mean more hardware failure, but the savings you’ll see from energy efficiency will more than cover the cost to replace hardware.

For instance, a large data center running five-plus megawatts can spend $500,000 more in energy per month. But let’s say you run the temperature up to 80 degrees in the cold aisle, taking your PUE down from 1.3 to 1.2. In this scenario, you will save over $500,000 per year in energy, and break a whole lot less than that in hardware.

Netflix is a great example of execution on bravery. Here’s a company that’s challenged its system to plan for recovery and resilience. They created Chaos Monkey, a software tool that forces their engineers to deal with small failures, ones that, once eliminated, will keep from turning into major outages. When Netflix loses a server—no big deal. The software recovers the sessions on other available hardware.

The challenge shouldn’t be to create bullet-proof hardware. The challenge instead is to write applications to be resilient. Managing state in your applications well enough to recover from server failure is not easy. But the rewards in lowered PUE and TCO are well worth the investment.

Be brave, embrace (hardware) failure, and focus on recovery. That’s the path to truly awesome PUEs.

As senior vice president of operations at Vantage Data Centers, Chris Yetman has over 18 years of operations, engineering and IT experience in the Internet infrastructure industry. He is responsible for leading operations, security, network and IT for Vantage. Previously, Chris was VP of AWS Infrastructure Operations at Amazon, where he had worldwide responsibility for operations and network for Amazon’s data centers.