For the past decade, power usage effectiveness has been the most common standard to measure data center energy efficiency. However, the industry has converged on power usage effectiveness, or pue, as the standard of choice avelar et al. The pue metric is the most popular method of calculating energy efficiency. Pue is calculated by measuring the ratio of total energy consumptionthe combination of servers plus the cooling to useful energy consumption just servers. Data center energy efficiency benchmarks continue to morph. What is power usage effectiveness pue and how is it.
The cost of power is ever rising and now constitutes up to 80% of the cost of running a data centre. Data center has maintained a trailing 12month average power usage effectiveness pue of 1. This and other embodiments can optionally include one or more of the following features. A critical analysis of power usage effectiveness and its. The industry should focus on adopting and systematically reporting more comprehensive metrics, which would allow more insight into data center. Power usage effectiveness pue is a metric used to determine the energy efficiency of a data center. In green it, power usage effectiveness pue is a calculation used to determine energy efficiency measurements. Highperformance computing data center power usage effectiveness. Calculate power usage effectiveness pue pue helps data center engineers determine energy efficiency by measuring how effectively data centers use input power. Use these best practices to learn how to tweak pue levels. Measuring and reporting data center pue publicizing a data centers energy efficiency with the power usage effectiveness metric involves factors other than facility and it equipment energy levels. Us8286442b2 data center with low power usage effectiveness. Power usage effectiveness pue is a measure of power efficiency in data center it equipment.
To calculate the energy consumption from it equipment in the data center, it is best to sum up the power readings at the pdus, or power distribution units, which distribute the power to the. Pue is therefore expressed as a ratio, with overall efficiency improving as the quotient. Power usage effectiveness in the data center photo. The power usage effectiveness pue metric has become an industry standard for reporting energy performance of data centers. One such method of measuring that efficiency, power usage effectiveness pue, gives data center managers a better picture. Pue is the ratio of total power used by the data center facility to the power used by the it equipment. It was developed by the green grid association, a nonprofit, open industry consortium of. Pue has many issues and fundamentally does not communicate energy use or efficiency.
If youve researched data centers and efficiency, youve certainly come across the term pue. Power usage effectiveness the ratio of total energy use to that of the information technology it equipment a measure of how efficiently the data center infrastructure uses. Power usage effectiveness pue is the measure of how efficiently a data centre uses its power. Defines the power usage effectiveness pue as a key performance indicator kpi to quantify the efficient use of energy in the form of electricity. Mission critical facilities support computing resources that have no tolerance for downtime caused by system failures. Pue is determined by dividing the amount of power entering a data center by the power used to run the computer infrastructure within it. By julian kudritzki and scott killian from the marchapril 2015 issue. Power usage effectiveness pue is a simple ratio that expresses how much additional power is needed to run the data centre fabric and plant equipment, over and above the computer equipment within it. Since its original publication, pue has been globally adopted by the industry. See the potential for free cooling in your region and incorporate energysaving airside. A key driver is our goal to achieve a pue power usage effectiveness at or below 1.
In todays data center industry, higher operating and energy costs are driving the industry to target new levels of true energy efficiency. To improve organizational effectiveness management should strive for better communication, interaction, leadership, direction, adaptability and positive environment. The industry should focus on adopting and systematically reporting more comprehensive metrics, which. A misguided focus on infrastructure masks and distracts from addressing. One such method of measuring that efficiency, power usage effectiveness pue, gives data center managers a better picture of it power usage versus total power consumption. S enior executives understand the importance of reporting and influencing it energy efficiency, and yet many are using inappropriate tools and metrics for the job.
Power usage effectiveness survey service schedule it equipment power this includes the load associated with all of the it equipment, such as compute, storage and network equipment, along with supplemental equipment such as kvm switches, monitors, and workstationslaptops used to monitor or control the data centre. Issues and problems with the power usage effectiveness. A system for providing cooled air to electronic equipment includes a data center having electronic equipment in operation, a plurality of on floor. Dec 11, 2008 microsoft has set some benchmarks for their data center of the future. En 5060042 en 5060042 information technology data centre facilities and infrastructures part 42. Pue is therefore expressed as a ratio, with overall efficiency improving as the quotient decreases toward 1. Practical considerations for metering and power usage. Why power usage effectiveness pue is important 20 aug 2015 by mike allen pue, or power usage effectiveness, is a term thats been thrown around a lot in the data center industry, particularly in the last few years. Power usage effectiveness pue has become the industrypreferred metric for measuring infrastructure energy efficiency for data centers. Guidance for calculation of efficiency pue in data centers.
Power usage effectiveness pue and its reciprocal data center infrastructure efficiency dcie are widely accepted benchmarking standards proposed by the green grid to help it professionals determine how energy efficient data centers are, and to monitor the impact of their efficiency efforts. A critical analysis of power usage effectiveness and its use. Pdf power usage effectiveness metrics to measure efficiency. Use netzoom data center infrastructure management dcim solutions to solve data center challenges of managing assets, change, capacity, connectivity while optimizing power, space, and cooling.
However, it is an incomplete metric, failing to address hardware efficiency, energy productivity, and environmental performance. Guidance for calculation of efficiency pue in data centers schneider electric data center science center rev 3 2 the benefits of determining data center infrastructure efficiency as part of an effective energy management plan are widely recognized. Our average power usage effectiveness pue, a measure of energy efficiency in 2011 was 1. Pue, or power usage effectiveness, which was developed by the green grid, has become the standard for measuring data center efficiency. Power usage effectiveness wikipedia republished wiki 2. Once captured and analyzed, understanding your pue can lead to. The it equipment power is the load associated with servers, storage, networking, work stations, etc. But the green grid, which created the metric, is trying to. Microsoft power usage effectiveness for data center it. Mita data centre power usage effectiveness data centre jan feb mar apr may jun jul aug sep oct nov dec yearly average 2012 1. Isocertified ultra power efficient data centres ukfast. Otherwise, the data center operator would have to wait monthly and rely on the bill from the utility to understand their total facility power usage.
Pue is calculated by measuring the ratio of total energy consumption the combination of servers plus the cooling to useful energy consumption just servers. Power usage effectiveness pue is a ratio that describes how efficiently a computer data center uses energy. The holy grail of data center energy efficiency metrics is the power usage effectiveness pui rating, in which lower numbers are better and 1. Data center power market size surpassed usd 14 billion in 2016 and is poised to grow at over 8% cagr between 2017 and 2024 growing need for cloud storage has led to a rise in the number of data centers globally which are consuming enormous energy. Thermosyphon cooler hybrid system for water savings in an. Netzoom data center infrastructure management dcim. The framework highlights the importance of implementing green metrics like power usage effectiveness pue and data center effectiveness, and carbon emission calculator to. Rumors are in industry is that you want to be as close to 1 as possible. Energy efficiency is relevant across the business, but particularly in the data centre where cooling is one of the. The pue metric is an enduser tool that helps boost energy efficiency in data center operations. See the potential for free cooling in your region and incorporate energysaving airside economization practices into your data center designs. Practical considerations for metering and power usage effectiveness.
It provides insights into efficiency efforts, and can also. Written by joe kozlowicz on thursday, january 10th 20 categories. While pue remains in the news with recent controversy over its inclusion in the latest ashrae standards, other energy efficiency metrics are starting to catch on specifically server utilization. Power usage effectiveness pue is a ratio of how efficiently a computer data center uses energy. The unique nature of these facilities requires close coordination between the building design team and information technology equipment providers so that resources can be put in place to provide cooling, power, and connectivity that best suit the. The facility power includes everything that supports the it equipment including power, cooling, lighting, etc. What does it really mean and how do i calculate it. We propose that timeaveraged pue or energybased variants of pue be used instead to develop sustainability frameworks. Power usage effectiveness this european standard specifies the power usage effectiveness pue as a key performance indicator kpi to quantify the efficient use of energy in the form of electricity. A classical metric for measuring energy efficiency in data centers is pue power usage effectiveness. It stands for power usage effectiveness, and is the leading metric for determining the energy efficiency of data centers. Power usage effectiveness pue power usage effectiveness pue is a metric used to determine the energy efficiency of a data center. Although it is the most effective in comparison to other metrics, the power usage effectiveness comes with its share of flaws. When the energy systems integration facility esif was conceived, nrel set an aggressive requirement that its data center achieve an annualized average power usage effectiveness pue of 1.
The data center industry uses the measurement pue, or power usage effectiveness, to measure efficiency. Microsoft has set some benchmarks for their data center of the future. According to heilman and kennedy philips 2011 organizational effectiveness helps to assess the progress towards mission fulfillment and goal achievement. The power usage effectiveness pue of the system is less than 1. The power usage effectiveness e usage is defined as the ratio of the power consumption of the whole data center to the power consumption of the computer severs. Pue represents how much of this power is actually used by the it equipment, in contrast to power used by cooling, lighting and other additional plant within the data centre. Green power usage effectiveness gpue is a proposed measurement of both how much sustainable energy a computer data center uses, its carbon footprint per usable kilowatt hour kwh and how efficiently it uses its power. The power usage effectiveness pue metric allows data centers to measure their energy efficiency and, in some cases, publicize the fact for bragging rights or marketing gain.
1413 351 1445 563 18 665 585 599 1258 65 1288 959 1471 346 820 379 1058 108 784 22 1429 868 61 1084 796 797 614 1321 953 351 139 327 246 928 453 1424 756 104 22 560 794