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Efficiency Without Compromise
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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
© 2010 Emerson Network Power
Emerson Network Power –
An organization with established customers
Ron Bednar
Director, Marketing and
Customer Insight
Emerson Network Power
© 2010 Emerson Network Power
© 2010 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
© 2010 Emerson Network Power
Most energy efficient UPS solution
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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?
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
Efficiency Without CompromiseTM
“Optimizing data center infrastructure to reduce cost and deliver high availability”
Uninterruptible Power
Critical Services
Economization
Balancing high levels
of availability and
efficiency
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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?
© 2010 Emerson Network Power
UPS systems and efficiency ranges
Typical enterprise data
center operating range
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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.
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
• 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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
Uninterruptible Power
High Density Cooling
Power
Architecture
Intelligent Aisle
Containment
Delivering
architectures from 10-
60kW/rack to minimize
space and cost.
© 2010 Emerson Network Power
Data center density increasing
Source: DCUG Surveys
Drivers• Constraints
• Consolidation
• Virtualization
• Cloud environments
Benefits• Optimize space
• Lower building costs
• Energy savings in
cooling system
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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%
© 2010 Emerson Network Power
Cooling strategies and future opportunities
Coolin
g S
yste
m P
ow
er
(kW
) / IT
load (
kW
)
Supplemental
© 2010 Emerson Network Power
• 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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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!
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
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
© 2010 Emerson Network Power
Efficiency Without CompromiseTM
“Optimizing data center infrastructure to reduce cost and deliver high availability”
© 2010 Emerson Network Power
Q & A
Ron Bednar
Director, Marketing and
Customer Insight
Emerson Network Power
© 2010 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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