Presentation on theme: "Presented by Paul Almond – Datacentre UK"— Presentation transcript:
1 Presented by Paul Almond – Datacentre UK Cooling SolutionsPresented byPaul Almond – Datacentre UK
2 Energy costs are rising The FactsEnergy costs are risingThe cost to power and cool server room equipmentnow exceeds the purchase cost on a 3-year life-cycle, based on a traditional server room / data centre configuration.Fact 1: Power and cooling costs increasingly limit scalability of your data center, and consume an ever-larger share of budget resources.The 3-year energy cost of highly dense servers is roughly equivalent to their acquisition cost.1 Fact 2: Advances in compute density, such as blade servers, have resulted in highly dense servers that require significantly more power and cooling than traditional server configurations.Industry analyst Gartner wrote, “The leading server vendors recognize the problems associated with highly dense hardware and, in particular, with the rapid uptake of high-density blades. As such, they are attempting to develop solutions to deal with those problems.”2Fact 3: The power and associated costs to cool the datacenter can be as much or more than the cost of powering the IT equipment (servers, storage, and networking). A study by HP and The Uptime Institute suggests that in a majority of the world's data centers 63% of a datacenter’s power is associated with the power of cooling the IT equipment. 4While the rest of the industry is narrowly focused on only one aspect of the problem -- reducing the power of chips and other components, HP is also addressing the need to reduce the power requirements and costs associated with cooling the datacenters themselves. Fact 4: Reducing the energy required to cool a datacenter can result in significant cost savings (and reduction in CO2 emissions) or the ability to deploy more IT equipment in the same space -- or a mixture of the two.
4 • Create more efficient rack space Cooling SolutionsThe Aim• Reduce energy usage• Create more efficient rack spaceThe government will be introducing a carbon tax in 2009All companies will have to report power usage by law
5 Industry StudiesRecent studies reveal that data centre power densities have increased ten-fold in the last 10 yearsand that cooling represents upwards of 60-70% of the total data centre power spend for the majority of customers. These costs are driven by the data centre power requirements and the volume of cooling airflow requiredSource HPWhyThe onset of high density computing including blades
6 What are the cooling challenges in today’s data centres? Agility – the ability of a system to adapt to change – increasing and unpredictable power densities driven by ever-changing business requirements.Availability – to eliminate hotspots and vertical temperature gradients at the face of the rack and to assure redundancy when required.Lifecycle costs – to optimise capital investment and available space – the ability to accelerate speed of deployment and lower maintenance costs, increase ROI and maximise operational efficiency.Manageability – Simple and intuitive configuration – predictive failure analysis and provision of cooling performance data.Serviceability – Decrease mean time to recover – simplify complexity – easier service procedures – minimise multi-vendor solutions.
7 Cooling Solutions Typical 1U Server Typical 7U Blade Server 32oCTypical 1U Server75.5 l/s/kW22oC49.6 l/s/kW( kW)Typical 7U Blade Server22oC38-42oCBlade servers both offer increased computing density and a significant performance per watt benefit. These inherent advantages of blades when matched with advanced power and cooling infrastructure, can assist to drive out waste in the physical environment and drive up efficiencies.It is not only direction of airflow that must be taken into consideration, but alsotemperature rise across the server and the air volume required by the server fans.Blade servers are the most electrically efficient form of server. Available blade types for agiven blade server system can vary dramatically in performance and power consumption
8 Room Based Cooling Existing Configurations The predominant architecture for cooling data centres since the inception of the mainframe has been raised floor air delivery from perimeter computer room air conditioners (CRAC).At lower densities (1 – 5 kW / rack), adequate cooling is provided to IT equipment, despite the mixing of air throughout the room.Major obstacle is the length scale of air delivery- distance between cooling units and heat load make it difficult to properly remove the heat generated from IT equipment without mixing with supply air- results in hot spots and a complicated design approach to air distribution
10 Row Based Cooling Existing Configurations Place the air conditioning units in the row of rack enclosures.Incorporating a hot / cold aisle design, heat is removed from the hot aisle as it is dispelled from the IT equipment. The hot air is then cooled and discharged to the cold aisle.Inherent energy efficiency advantages:- fan power reduction to move the air- shift in mindset from cold air supply to heat removal- removal of heat before it has a chance to mix with surrounding air in the room makes the remaining areas in the room a large available volume of supply air- length scale for air delivery is only a few metres or less (varies on number of racks) rather than tens of metresNote: In-row cooling architecture, as depicted, utilises a free air discharge without ducting or any containment of hot or cold air streams.
11 Close Coupled Cooling Cooling Solutions Eliminate the supply air from the equationCapture all the heat where it is generated, from the hot aisleRemove the heat before it mixes with air streams outside the hot aisleNo obstructions to block the air pathAvoid complex engineeringVariable speed fans to match cooling capacity to power load in each aisleRoom temperatures will be easier to maintain with less warm air escaping the hot aisleClose Coupled Cooling
12 Cooling SolutionsHow do I cool mydata centre for FREE?
13 Free-Cooling Chillers Cooling SolutionsFree-Cooling ChillersUse ambient air to cool the warm return waterIdeally suited to new designs, but free-cooling options can be retro-fitted to existing installations
15 Free-Cooling Solutions Extra bitsFREE-COOLING ChillerWater Circuit Schematic
16 Free-Cooling Solutions – AverageAir Temperature
17 Free-Cooling Solutions – Air Temperaturevs Free-Cooling %
18 Free-Cooling Chillers Free-Cooling SolutionsFree-Cooling ChillersAir cooled systems: typically 100kW-1200kWUses condenser fans only (i.e. no compressors) to pre-cool the returning chilled water (in free cooling mode)Compressors only run if the required leaving water temperature cannot be achieved with free-cooling systemLower compressor run time = less maintenance and less down- timeCapital payback typically <18 months EVEN FOR WORST CASE N+1: real bottom-line savings thereafterMaximised benefits using elevated chilled water temperatures, e.g. Hot Aisle Containment applications
19 Free-Cooling Chillers Free-Cooling SolutionsFree-Cooling ChillersWhat do I need to do to be able to utilise free cooling?Create predictable air flowCapture and Contain hot air to maximise return air tempRaise entering water temperatureWater is 350% more efficient than air at transferring andtransporting heat
23 Free-Cooling Cost Saving Summary Free-Cooling SolutionsFree-Cooling Cost Saving Summary120kW N+1 installation with Free-Cooling ChillersAchieve pay-back of the cost difference to standardchillers in <10 months for one machine; 18 months for worst- case, two-machine N+1 installationsTypically achieve 100% Free-Cooling of data centre 26%(>3 months) of the yearAchieve a useable level of Free-Cooling for >75%of the yearBased on UK average daily temperatures measured in the SE region, 1997 to 2006 inclusive
24 Alternative options for energy efficient cooling solutions Turbocor ChillersVery high efficiency, especially at lower loadsCentrifugal compressor with magnetic bearings eliminates oil and the maintenance / efficiency losses associated with traditional systemsCombine with FREE-COOLING for maximum effect
25 Turbocor Summary Benefits Cooling SolutionsTurbocor Summary BenefitsGovernment ECA approval statusExcellent full load energy efficiencyFurther improved part load performanceLower energy bills, reduced carbon footprintVirtually no mechanical wearUnrivalled reliabilityNo oil to degrade the system over timeLow noiseNo vibrationFull remote monitoring capability30% lower overall life cycle costs
26 Free Cooling - If you’re still not convinced... Cooling SolutionsFree Cooling - If you’re still not convinced...Energy–Efficiency LoansInterest-free unsecured loans of between £5,000 and £100,000 are available for small and medium sized businesses who are investing in an energy-saving project. Coupled with the ECA scheme this offers business really significant savings. *Free Energy SurveysIf your energy bill is higher than £50,000 per year, then you may qualify for a FREE energy survey to provide you with a practical action plan of energy saving measures tailored to your business. ** Carbon Trust
27 The Bottom Line Cooling Solutions Two major benefits for business The Enhanced Capital Allowance (ECA) Scheme and the Energy Technology ListEnergy savingsProducts listed on the ETL are highly energy efficient, and should produce significant long-term financial benefits by reducing your energy bills and Climate Change Levy payments.
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