calculating trade-offs in data center...

Calculating Trade-offs in Data Center DesignData Center Science Center

Schneider Electric June 19, 2012 2

Schneider Electric TradeOff Tools™

● Simple, automated tools to support specific planning decisions

● Models complex interactions of systems based on data and science

● One-screen, standardized user interface

● Instant output allows for rapid creation of “what if” scenarios

Free tools at http://tools.apc.com

http://tools.apc.com/


Capacity Budget Growth plan Criticality Efficiency Density

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Where do the tools come in?

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At the beginning of the planning process

White Paper

http://www.apc.com/wp?wp=142


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What would I need to do to hit a specific efficiency target ?

How much power do I need at the service entrance to support my IT load

What is the capital cost of different alternatives

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What impact will my virtualization project have on my PUE ?

Should I build out now or in phases ?

What density should I plan, based on my IT plan ?

Difficult questions can affect or delay critical planning decisions


Data Center Power Sizing Calculator

● Define basic characteristics of a data center’s IT load● Server quantity & mix● Mainframes● Storage● PUE

● Estimate data center IT load capacity

● Calculate how much utility power is required to support IT load

● Demonstrate allocation on total power requirement

Impact of server and storage configurations on IT load capacity and required utility input power

http://www.apc.com/tool/?tt=1



IT Carbon & Energy Allocation Calculator

● Assign carbon and energy costs to IT users, based on data center attributes:● PUE● IT load● Location

● See annual energy and carbon allocations on a per-server basis, driven by:● Servers● Storage● Networking● Physical infrastructure

● Illustrate15 year allocations

Impact of efficiency, load characteristics, and location on carbon and energy allocation for IT users




Data Center AC vs. DC Calculator

● Compare energy efficiency of four different power distribution architectures● Legacy 208 V AC● Best practice 208 V AC ● 415 V AC● 380 V DC

● Demonstrate how 415 V AC and 380 V DC have virtually same efficiency

Impact of data center efficiency of various AC and DC power distribution architectures




Data Center Capital Cost Calculator

● Quickly set data center budget expectations (+/- 20%)● Cost breakdown by

subsystem● Cost breakdown by type of

cost (material, labor, installation)

● Decide priority among competing design parameters● Capacity● Budget● Growth plan● Criticality● Efficiency

● Costs derived from actual configurations, quotes from 3rd party suppliers & partners

Impact of physical infrastructure design choices on capital cost




UPS Efficiency Comparison Calculator

● Compare 2 UPS systems● Efficiency● Electricity cost● Carbon footprint

● Assess UPSs from list of APC UPSs (measured data) or define own UPS

● Demonstrate how scaling UPSs to match load impacts efficiency curve

● See efficiency, electricity cost, and carbon as function of IT load

Impact of UPS efficiencies on energy costs and carbon footprint




Data Center Efficiency Calculator

● Estimate annualized data center efficiency of new or existing data center● Power usage effectiveness

(PUE)● Power consumption by

subsystem● Energy cost breakdown

● See the efficiency curve of the data center

● Determine efficiency impact of key design decisions● Redundancy● Cooling / power architecture● Percent load

Impact of power and cooling approaches on energy cost




Data Center Carbon Calculator

● Illustrate how data center changes impact carbon emissions● Location● Efficiency (PUE)● Load (kW)

● Determine savings in electricity as PUE improves

● Estimate equivalent number of cars removed from road

● Demonstrate 15-year cost and carbon savings

Impact of changes in data center efficiency on energy costs and carbon footprint




Data Center Design Planning Calculator

● Show how uncertainty of IT growth plan impacts costs

● Demonstrate how scaled buildout reduces data center TCO. Key factors include:● IT load profile● Step size● Redundancy● Power & cooling architecture

● Compare PUE over data center life

● Compare runrate and cashflow analysis

Impact of physical infrastructure technology and growth plan strategies on key design parameters




Virtualization Energy Cost Calculator

● Illustrate energy savings resulting from server virtualization

● Compare pre- and post-virtualization● % energy savings● Annual electric bill● Efficiency (PUE)● Space required

● Demonstrate where energy savings comes from● Entire data center● Physical infrastructure● Total IT● Servers

Impact of server virtualization and data center design choices on energy and space savings




Data Center InRowTM Containment Selector

● Generate optimal containment configuration● Uncontained● Hot aisle containment● Rack air containment● Rack air containment with

front containment● Identify dimensions and

layouts that limit configuration possibilities

Impact of preferences and constraints on the recommended containment approach




Cooling Economizer Mode PUE Calculator

● Determine optimal cooling economizer approach based on:● Climate (ASHRAE bin data)● Data center load● IT operating environment

(temperature & humidity)● Compare common cooling

architectures● PUE● Energy cost● Carbon● Full & partial economizer

hours

Impact of geography and cooling characteristics on PUE, energy cost, and carbon emissions




InRowTM Ancillary IT Equipment Cooling Calculato

● Ancillary IT = IT equipment not arranged in rows, such as:● Tape libraries● Storage equipment● Networking gear● Power distribution equipment

● Determine if additional cooling is required or if the existing InRow cooling is sufficient, based on:● IT parameters● Cooling parameters● Room characteristics

Impact of IT, cooling, & room characteristics on ability for row-based cooling to support ancillary IT loads




What are TradeOff Tools? TradeOff Tools are simple, interactive tools, based on data and science, that make it easy to vary parameters, experiment with “what if” scenarios and make tradeoffs during data center planning

When should they be used?

Used early in the planning process, TradeOff Tools help avoid planning roadblocks by making informed and accurate decisions

How do they help in planning a data center?

TradeOff Tools help show quantifiable, tangible benefits of implementing certain technologies and justify project decisions

TradeOff Tools Summary


Contact Us

Data Center Science Center

Email: [email protected]

Contact us with questions or comments on TradeOff Tools or related White Papers

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mailto:[email protected]

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