Data Center Cooling Strategies

42U Confidential ©2008 42U All rights reserved Slide 1

Cooling Strategies for Efficiency – Techniques to Reduce Your

Energy Bill by 20-80%

September 19, 2008

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Overview

• Business Factors

• Data Center Strategy

• Fundamental Strategies

• Technology Alternatives

• Advanced Technologies

• Efficiency Plan

• Q&A


Efficiency Drivers

• Rising Energy Costs• Physical Limitations

– Building Infrastructure– Utility Capabilities

• Mandates– Carbon Tax– Utility Initiatives– C-Level Need for ‘Green’ Message


Energy Cost Projection


Source: Uptime Institute

Data Center Strategy

• Virtualization

• Blades

• Application Expansion

• Facilities

• Power Management

• Air Handling Infrastructure


Planning Considerations

• Hot/Cold Aisle Arrangement– Feasibility– Applicability

• Rack Density Design Point– Standardized– < 15 kW = Supplemental– > 15 kW = Close Coupled


Efficiency Strategies

• Variable-Speed Fans• Power Design• Modularity• Airflow Control

– Perforated Tile Configuration– Blanking Panels– Floor Grommets– Containment


Energy Consumers

• 45% of Power Consumption Goes to the Cooling Infrastructure

• 50% More than to theIT Equipment


Source: The Green Grid, Guidelines for Energy-Efficient Datacenters

Functional Limitations

• CRACs Are Reaching Their Functional Limits


Source: Aperture, Managing Today’s Data Centers, Avoiding the Impending Crisis

Rack kW Trend

• 10 kW of Load Becoming the Norm

• Continued Increasing Density


Source: IDC, The Impact of Power and Cooling on Data Center Infrastructure

Cooling Efficiency

• Hot/Cold Aisle

• Density Distribution Scheme• Supplemental• Advanced


Source: APC, Ten Cooling Solutions, #42

Confirmation of Fundamentals

• Impact of a Single Blanking Panel

• Consistent Results For– Floor Leaks– Tile

Arrangement

Top of rack

Middle of rack


Density Distribution

• Close-Coupled Cooling

• High-Density Checkerboard

• Strategic Supplemental Equipment


Source: APC, Ten Cooling Solutions, #42

Airflow Containment

• 30-49% Increase inCRAH/CRAC Capacity


Source: Accenture/LBNL Air Flow Study 2007

Hot Aisle Containment

• Saves40% Fan Energy


Source: Accenture/Oracle Data Center Air Flow Management – Hot Aisle Containment

Cold Aisle Containment

• Saves75%FanEnergy


Source: Accenture/LBNL Air Flow Study 2007

Technology Alternatives


Close Coupled

Rear Door

Ambient Air

Supplemental In-Row

Active Air

10 15 20 28 35 40 kW

Chip + Enclosure

Ambient Air

• Low Density

• Hot/Cold Aisle

• Raised Floor Plenum


Ambient Air

10 15 20 28 35 40 kW

Rear Door

• Hot/Cold Aisle Alternative

• Low Capacity

• Isolated Dense Cabinets


Rear Door

10 15 20 28 35 40 kW

Active Air

• Air Handling Efficiency

• Containment Alternative

• Not Additional Cooling


Active Air

10 15 20 28 35 40 kW

Supplemental In-Row

• Hot Spot Control

• Supplements CRAC Capacity

• Next-Level Capacity

• In-Row or Overhead


Supplemental In-Row

10 15 20 28 35 40 kW

Close Coupled

• Closed Loop

• Microclimate

• Isolated


Close Coupled

10 15 20 28 35 40 kW

Chip-Level

• Extreme Density

• Customized Servers

• Research Environments


10 15 20 28 35 40 kW

Chip + Enclosure

Close Coupled Cooling


+ =

Cooling Server Cabinet High-Performance Solution

Redundancy

• Configurable To Meet Need


COOLING

M1

M2

M3

COOLING

COOLING

COOLING

Footprint Reduction


40kW

10 Racks

4kW 4kW 4kW 4kW 4kW 4kW 4kW 4kW 4KW 4kW 4kW

40kW

3 Rack Space

COOLING

COOLING

20kW 20kW

30 – 40 KW

40kW

2 Rack Space

COOLING

COOLING

40kW

Close Coupled TCO Example

• 10K Square Feet Reduced to 5.6K– $129K-195K Annual

Real Estate Savings

• $69K-302K Annual Energy Expense Reduction


Economizers

• Use Environmentfor Cooling

• Air-Side InherentlyMore Efficient

• Water-Side Results In Considerable Savings– Enhance with

Reservoir for Off-Peak Cooling


Water Side Potential


Planning Considerations

• Create a Comprehensive Design

• Consider the Entire Facility

• Examine Alternative Technologies

• Develop Standards


Efficiency Checklist

• Reduce Your Electric Bills– 20-50% for

No/Low-Cost Changes

– 80% for Systematic Efforts

– Self-Funding Phased Plan


Source: The Green Grid, Guidelines for Energy-Efficient Datacenters

Summary

• Consider the Big Picture

• Basics

• Airflow Containment

• Supplemental Technologies

• Advanced Solutions

• Efficiency Improvement Plan– C-Level Value


Q&A


For More InformationContact Your 42U

Data Center Efficiency Consultant:

1-800-638-2638 or www.42U.com

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Today’s Presentation Email:

[email protected]

Thank You

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Data Center Cooling Strategies

Technology

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