Efficiency Without Compromise

Efficiency Without Compromise:

Optimizing Data Center Infrastructure to

Reduce Cost and Deliver High Availability

© 2010 Emerson Network Power

Emerson Network Power: The global

leader in enabling Business-Critical Continuity

Emerson Technologies

Uninterruptible Power

Power Distribution

Surge Protection

Transfer switching

DC Power

Precision Cooling

High Density Cooling

Racks

Rack monitoring

Sensors and Controls

KVM

Real-Time Monitoring

Data Center Software


Emerson Network Power –

An organization with established customers

http://www.nortonhealthcare.com/default.cfm

http://www.emerson.com/

Ron Bednar

Director, Marketing and

Customer Insight

Emerson Network Power



Top data center issues

Source: Data Center Users’ Group

Rank Fall 2006 Fall 2007 Spring 2009

1 Heat Density Heat Density Heat Density

2 Space/Growth Power Density Energy Efficiency

3 Power Density Energy Efficiency Monitoring

4 Monitoring Availability Availability

5 Availability Space/Growth Power Density


Most energy efficient UPS solution


Top data center issues

Rank Fall 2006 Fall 2007 Spring 2009 Fall 2009

1 Heat Density Heat Density Heat Density Availability

2 Space/Growth Power Density Energy Efficiency Monitoring

3 Power Density Energy Efficiency Monitoring Heat Density

4 Monitoring Availability Availability Energy Efficiency

5 Availability Space/Growth Power Density Power Density

Source: Data Center Users’ Group


Efficiency considerations

By making reducing energy consumption in my power and

cooling infrastructure, did I:• Increase the chance of downtime?

• Increase cost to run my IT equipment?

• Increase maintenance costs?

• Affect future flexibility?

• Impact the ability to manage my infrastructure?


500 kW of IT, 10 cents / kW hr Data Center A

Data Center

B Energy

"Efficient"

Energy

Savings

Per Year

UPS Effeciency 92% 95%

Cost to Power the Load $35,040 $21,900 -$13,140

• Compare energy costs of two data centers

• Data Center B saves $13K per year in energy costs

– UPS running on pure bypass

• Result: Improved efficiency at the expense of availability

– Pure bypass = IT susceptible to surges and sags

Compromising availability for energy efficiency


Cost of downtime

• Typical hourly cost of downtime by industry

– Brokerage service: $6.48 million

– Energy: $2.8 million

– Telecom: $2.0 million

– Retail: $1.1 million

– Health care: $636,000Sources: Network Computing, the Meta Group and Contingency Planning Research

• Don’t save $13K, only to cost you and your customers

millions of dollars in lost revenue

– A single minute of downtime can wipe away all energy

savings


Better to equate efficiency to lifecycle of a data center

Ability to produce an output with a minimum of

effort, expense, or waste

Design &

Deployment

OperationManagement

& Planning


Efficiency Without CompromiseTM

“Optimizing data center infrastructure to reduce cost and deliver high availability”


Critical Services

Economization

Balancing high levels

of availability and

efficiency


Differences between transformer based and

transformerless UPS systems

Transformer

• Enterprise space

• Dual input sources

• Full galvanic isolation

• Passive + active I/O power quality

management

• Lower and more predictable

management of fault currents

• Better DC fault management

• Reduced need for capacity

paralleling; larger modules

• Affords best system availability

Transformerless

• Small/medium business space

• Smaller footprint; lighter weight

• Marginally higher efficiency

• Single input source

• No internal galvanic isolation

• 100% active I/O power quality

management

• N+1: Lower initial system cost

• Easier expansion and change

• Best accommodates fuzzy growth plans

• Improved efficiency at high loading


0.98

0.985

0.99

0.995

1

Critical Bus Availability

Assumption: Single UPS + battery reliability of .99

N = 1 maximizes

availability

N+1 redundancy: Too many N’s?


UPS systems and efficiency ranges

Typical enterprise data

center operating range


Economizers for data centers

Air-Side

• Pros

– Best in moderate climates

• Cons

– Ductwork required to get air to the

space

– Humidity control can be a

challenge. Vapor barrier is

compromised

– Dust, pollen and gaseous

contamination sensors are

required

– Hard to implement in “high density”

applications

– Mildew minimization actions

required

Water-Side• Pros

– Can be used in any climate

– Service requirements and

complexities greatly reduced

• Cons

– Series indirect piping and

control more complex

– Complexity during Change-over

– Risk of pitting coils if untreated

stagnant water sits in

econocoils


Air economizer system

Normal operation

• Air pattern same as traditional

under-floor system fed by

perimeter cooling units

Air Economizer Operation

• Basic air flow is unchanged

• External air is brought into the mixing

box on the top of each cooling unit

and exhausted through an

independent air exhaust system

• Intake is enthalpy controlled

• Exhaust system is controlled by the

air pressure in the room


Langan Engineering

• Environmental engineering firm Elmwood Park, NJ Company experiencing rapid growth

Organization implementing company-wide green initiative

Area susceptible to sags and brownouts

• Replaced seven small line-interactive UPS units with a single Liebert NX with Softscale on-line UPS

• Scalable system enables company to double power capacity without adding or modifying hardware

• UPS operates at 93 percent efficiency while decreasing downtime by 20 percent

Variable Air

Flow

Intelligent

Control

Variable Capacity

Adapting to IT changes

for continuous

optimization and design

flexibility.


Variable-capacity cooling

• IT loads have a large variation in cooling and airflow requirements

– Virtualization, power management, new equipment

• Need to match cooling capacity with the IT load

– Eliminates over cooling and improves cooling efficiency with reduced cycling


• Situation: Over-provisioned room

– Ten 30 ton units, running at 70% capacity

– Install Variable Speed Drives or Turn-Off Units

• Variable Speed Drives save energy and maintain proper

airflow

Current Situation Install VSD Turn Off 2 Unit

30 Ton CRAHs 10 10 8

Cooling Produced (ton) 300 240 240

Total Power Needed to Operate Units (kW) 124 42.5 99.2

Cost to Operate Units ($0.10/kWh) $109,000 $37,500 $87,000

Energy Savings $71,500 $22,000

Extra Cooling Capacity 30% 30% 13%

Variable-capacity cooling


What is Energy Optimization Mode?

• Operation of critical load on bypass

• Increases efficiency by idling the inverter while the load is fed by the bypass

• If poor quality conditions are detected, unit automatically switches to full double conversion mode

• May be a viable strategy with one system in 2N environments

90.0%

91.0%

92.0%

93.0%

94.0%

95.0%

96.0%

97.0%

98.0%

99.0%

100.0%

30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0%

750kVA NXL Efficiency

Eff EcoMode Efficiency

UPS Energy Optimization Mode

© 2010 Emerson Network Power 24

Intelligent paralleling

3 Units @ 25% Load Each = 91.5% Efficiency

2 Units @ 38% Load = 93.5% Efficiency

% L

oad

% L

oad

What is intelligent paralleling?

• Firmware intelligence

• Increases the efficiency of an

N+1 system by turning off

redundant module inverters

• Maintains user programmed

levels of redundancy and

distributes off-time equally

between modules

• Maintains battery charging

through the rectifier


Intelligent cooling controls

CR

AC

CR

AC

CR

AC

CR

AC

Improved system efficiency

• Liebert iCom controls establish unit-to-unit teamwork control

• Temperature sensor grid allows more precise airflow delivery

• Allows one unit to serve multiple rows or CAC areas

FAN SPEED

CONTROL

SENSORS

TEMP CONTROL

SENSORS

Unit Control Sensor

Integrated Control Solution


Bay Area Internet Solutions

• Co-location facility in Santa Clara, Calif.

83,000 sq. ft. facility

45,000 sq. ft. of raised floor space

• Innovative “box within a box” economizer design

–Takes in 200,000 CFM of cool air to supplement CRAC units

–Air filtered twice - in air corridor and by precision cooling units -

before entering data center floor

–Runs 85 percent of the time

• Liebert CW CRAC units with Variable Speed EC Fans

–Allows units to adapt capacity to IT load

–Reduces energy consumption 10 to 30 percent

• 500 racks of cold aisle containment

–100% separation of hot and cold air

–500% more cost effective to build than hot aisle containment

• Anticipated cooling infrastructure energy savings of 4 million

kWh per year and PUE of 1.4 while achieving 99.999%

availability

• Awarded maximum incentive amount from Silicon Valley

Power’s Customer Directed Rebate program


High Density Cooling

Power

Architecture

Intelligent Aisle

Containment

Delivering

architectures from 10-

60kW/rack to minimize

space and cost.


Data center density increasing

Source: DCUG Surveys

Drivers• Constraints

• Consolidation

• Virtualization

• Cloud environments

Benefits• Optimize space

• Lower building costs

• Energy savings in

cooling system


Cost Difference

Low Density vs High Density

Building Costs @ $250 sq ft ($1,875,000)

Rack and PDU cost @ $2,500 each ($750,000)

Cooling Equipment $320,000

Installation Costs $750,000

Cooling Operating Costs (1yr) ($420,480)

Total Net Savings of a High Density Design ($1,975,480)

5 yr Total Net Savings of High Density ($3,657,400)

Major areas of costs and savings

Adding 2000 kW of IT at 20kW/rack vs. 5kW/rack

• Smaller building for high density

• Fewer racks for high density

• Capital equipment costs more

• Equipment installation costs higher

• High density cooling is more efficient


Integrated containment

• Integrates the benefits of aisle containment with the

capabilities of the control for optimized cooling

• Containment maximizes air utilization

• The control matches cooling capacity with heat load

– Variable speed fans

– Variable capacity compressors


Savings – DX system

Without

ContainmentContainment

Integrated

Containment

Compressor 69.7% 50.9% 50.4%

Condenser 9.3% 9.3% 9.3%

Evaporator Fan 21.0% 18.5% 7.2%

Total 100% 78.7% 66.9%

Savings 21% 33%

Without Aisle Containment With Aisle Containment With Integrated Containment

92 F

97F

62 F

62 F

•CFM

•100%

•CFM

•90%CFM

67%

75 F

89 F

54 F

54 F

64 F

85 F

94 F

62 F

62 F

80 F 85 F


High density cooling

• On demand, plug-and-play flexibility to add additional capacity

• Cooling at the source of heat with advanced compact heat exchangers

• Multiple module configurations to meet any data center layout

• Can increase energy savings by more than 50%


Cooling strategies and future opportunities

Coolin

g S

yste

m P

ow

er

(kW

) / IT

load (

kW

)

Supplemental


• Data center in Minneapolis

– 12,000 sq. ft.

– 600 racks

– 30 blade center chassis

• Hot spots throughout the data center

• Liebert XD system delivers cooling directly to

the source

– Eight 20 kW Liebert XDH horizontal row coolers

– One 160 kW Liebert XDC coolant chiller

• Modular cooling strategy enables future growth

• Achieving a consistent temperature throughout

the data center

• Earned $1,725 utility rebate based on energy

savings and efficiencies of the Liebert XD

system

• Saved 11 kW per hour in operating costs

CDW Berbee

Improving performance

of the IT infrastructure

and environment

ManagementTools &

Technologies

Integration& Operation

Services

ExpertAdvice


What is infrastructure management?

• Industry Leadership:

Energy Logic, Emerson

Green Data Center

• Best practices

assessments and

implementation service

KVM Switch Serial ConsoleService Processor

Manager

PDUSensor

Network Rack Distribution Unit

Embedded Technology Solutions

Modeling, planning, tracking and

complexity reductionService Capabilities

Visibility, Access & Contol at the rack & device

Flexible Planning and Design of Infrastructure components


Value, performance and confidence

• Visibility to key operating parameters for power and cooling

• Access creates a two way flow of data and control: information is actionable

• Getting the capacity into the right space at the right time

• Understand the true cost of the infrastructure

• Know the effects of a change• Identify the risk areas, availability, etc.• Know, Plan, and Act on the

requirements

• Performance Optimization• Change Management (Complexity)• Asset Management• Maximize availability• Accurate metrics to drive continuous

improvement

VISIBILITY, ACCESS AND CONTROLAGGREGATE, CONSOLIDATE KEY

DATA ELEMENTS EXECUTE AGILE, EFFECTIVE CHANGE

Deliver value to customers by enabling visibility into the data center.Transform data into action

REDUCE RISK, ENERGY USAGE, COST

INCREASE ASSET UTILIZATION and TIME TO RESPOND


Assessments identify weaknesses

and vulnerabilities

• Identifies site-specific requirements

• Identifies unwanted hot spots which

degrade equipment and data

• Reduces operating costs and the

likelihood of equipment failure and

downtime

• Facilitates data center capacity

planning

• Provides actionable information


Battery mean time between failure example

Study based on batteries under contract prior to the end of their expected service life

Battery maintenance and no monitoring experience high reliability

On-site experience significantly longer runtime before a failure

Serviced monitoring have experienced no outages due to bad batteries

– 1.6 million run hours!


Online university

• Online university

– >300,000 students worldwide

• Data center

– 10,000 sq. ft.

– 1,000 production servers

• Implemented centralized monitoring solution

• Increased understanding of the current state of critical IT

infrastructure through proactive monitoring and management

• Data analysis and trend reporting tools allowed data center staff to

analyze data and use it to prevent specific problems from recurring

• Customized alerts depending on the type and seriousness of the

event


Norton Healthcare

• Hospital and healthcare system in Louisville, Ky.

– Rapidly growing IT organization due to implementation of electronic medical records

– Complete data center renovation

• Liebert SiteScan providing the new NOC with centralized monitoring and control of SNMP devices through existing network management systems

• Staff automatically notified when environmental conditions or power capacities change

• Increased workload by at least 100% without increasing staff

• Reduced help desk calls by 20%

Before

After


Efficiency Without CompromiseTM

“Optimizing data center infrastructure to reduce cost and deliver high availability”


Q & A

Ron Bednar

Director, Marketing and

Customer Insight

Emerson Network Power


Thanks for joining us!

• Register for our next Webcast on June 16,

“Critical Systems Monitoring: Innovative Strategies for

Effective Infrastructure Management”

• Follow @EmrsnNPDataCntr on Twitter

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Efficiency Without Compromise