10. APC

The Efficient Enterprise

Eduard Bodor System Engineer APC Romania & Bulgaria

All content in this presentation is protected – Š 2008 American Power Conversion Corporation

AGENDA ● Introduction and some new regulations ● Some basics ● DCiE ● Optimizing ● Hardware ● UPS ● Cooling

● Summary

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

European Commision code

● http://re.jrc.ec.europa.eu/energyefficiency/

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Basic requirements for IT-equipment ● Power Supply „CBEMA“-Curve ● Air Conditioning 20 - 26 °C 20 - 80% rF ● Availability Tier 1 to 4

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Energy Costs, Trend: rising

● 0,12 € per kWh is an average value for electrical power costs in Europe ● Based on that price the annual cost of power supplied to 1 kW of IT-equipment is around 1.000,- €.

(365 x 24h = 8760h x 0,12 Kr = 1.051,20 €) ● The Network Critical Physical Infrastructure needs around the same amount of power ! => 1.000 € per kW per year ● During the typical 10-year-Lifetime of a datacenter every 1 kW of IT-load cost around 20.000,- € !

and

1kWh = 600g CO2 APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

!

Where does Hardware inefficiency go?

99.9997% of WATTS IN becomes heat

40%

50% 50%

IN Physical Layer

Inefficiency (waste) Useful Work

99.999% .001%

60% Computing Hardware

Silicon

Business Apps

.0003% of WATTS IN becomes computation 50%

60% .001%

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Data Center Infrastructure Efficiency

DCiE =

Watts delivered to IT load Watts IN to data center

This ratio gives a value between 0 and 1 and is normally expressed in % => Higher value = higher efficiency

This definition follows the US Environmental Protection Agency ENERGY STAR Program.

Detailed information can be found in APC-MGE Whitepaper 157

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Optimising the IT ●Remove all old or unused hardware ●Use modern IT-equipment with high efficiency power supplies (90%+) and intelligent power management ●Virtualization for efficient loading of IT-equipment (increase from 15% to 80% load) ●Don‘t forget the peripherals and desk-tops („Stand-by“)

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Rightsizing !

2(N+1) power N+1 cooling

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Save Energy with State-of-the-Art UPS systems  size with minimal oversizing, „hot-add“ power if needed  very high efficiency, even at low load and in redundant configuration, Values for 100% load are not sufficient for E.eff. installations

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Sample: Saving by right sizing

Given: 1 MW of IT power Increase efficiency factor of UPS from 0.92 to 0.96 saves 58.856,- €/a or 294 tons CO2/a

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

IDC Research ● “Through it’s research IDC has found that an increasing number of datacenters are close to reaching their power and cooling thresholds, or are anticipating doing so in the near future.” ● “This in turn is constraining IT’s ability to expand to keep pace with business requirements, as well as increasing the risk of failures associated with hotspots in the datacenter.” ● “IDC believes datacenter operators will require enhanced tools to optimize energy efficiency and to maximize capacity within their environments.” ● “The cost to power and cool the installed base of servers is increasing a growth rate that is four times the growth rate of new server spending.”

● Surce:

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

September 19, 2008

Optimising the Datacenter cooling

Savings:

●rising the acceptable air-inlet-temperature of the ~ 4% per °C IT-equipment to 20 -26°C leads to higher efficiency ●higher the chilled water temperature (e.g. 12°C instead 10-15% of 6°C) means that the compressor needs less power ●use of chilled water allows the „indirect free cooling“ (Eco-Mode) which is even more efficient with higher chilled ~ 33% water temp and higher air inlet temps ●avoid dehumidifying by higher heat exchanger temps 3-5% saves the additional humidifying energy

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Gartner Rerearch ● The most important result - Containment hot or cold aisles can reduce data center energy costs by 30%. ● “For any data center that is under pressure to cut costs or that just wants to improve energy efficiency, containment can provide a method for substantially reducing energy costs associated with cooling and can extend the capacity of cooling plants.” ● “Hot-aisle containment is well-suited for new data center construction or for extensive data center renovation projects.” ● “Hot-aisle containment is typically implemented using specialized racks with in-row cooling (such as the APC InfraStruXure system), or by establishing other types of barriers to contain the exhaust air in the hot aisles” ● Source Gartner Research Publication Date: 17 October 2008

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Hot Air Containment Systems !

High density and high efficiency

over 30 kW of cooling per rack possible

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Cooling/Power savings by Fan Laws Operating Point A: RPM = 250 Static pressure (SP) = 1,2 bar Power consumption (P) = 35Watt

AirFlow (new) = AirFlow (old)

RPM (new) RPM (old)

What happens if we change the air flow demand to be tripled?

Air Flow related directly to RPM: => RPM triples = 750 SP varies as the square of RPM: => SP = 10,8 bar Power consuption raises by power of 3: important for our discussion) => (Not Power consumtion = 900 Watt Operating Point B: RPM = 750

SP (new) = SPP(old) (new) = P (old)

((

2 RPM (new) 3 RPM (old) RPM (new) RPM (old)

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

))

Static pressure = 10,8 bar Power consumption = 945Watt

Improvements ● APC White Paper Nr. 113 „Electrical Efficiency Modeling of Data Centers” ● APC White Paper Nr. 114 „ Implementing Energy Efficient Data Centers” ● APC White Paper Nr. 157 “Metric for DC Efficiency” ● many more White Papers focusing on all aspects of IT-Infrastructure

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Conclusion: up to 40% overall savings possible !

45 40 35 30 25

Legacy State-of-the Art

20 15 10 5 0 IT

APC by Schneider Electric – Eduard Bodor – 02. Dec. 2009

Power

Cooling

Thank you very much for your interest and attention !

reference installation at Frankfurt Airport, Germany

All content in this presentation is protected – Š 2008 American Power Conversion Corporation