You Can’t Manage What You Don’t Measure:
3
Agenda:
1. Data Center Challenges
2. Power Usage Effectiveness Overview
Data center managers need accurate and timely
information to make better decisions in real time
Server
consolidation
Dynamic power
variation
Energy and
service
cost control
Virtualization
Increasing availability
expectations
Energy
Efficiency
Regulatory
requirements
Metrics and
reporting
Infrastructure
management
Cloud computing
Uncertain
planning for capacity
or density
Documentation
BMS
Po
w
er
Management
VM
Management
CMD
B
IT Tic
ke
ts
Ser
ver
Management
Cool
ing
Con
tr
ol
Facility Management
IT Management
DCIM
Connectivity management
Asset management
Capacity Planning
Power & environmental
Workflow generation
Reporting
DCIM becomes the centerpiece for operational
efficiency
Data collection,
meters, sensors, etc.
Agenda:
1. Data Center Challenges
2. Power Usage Effectiveness Overview
9
About the Green Grids
A not-for-profit global consortium focused on driving
energy efficiency in the computing ecosystem.
Developing meaningful and user-centric metrics to
help IT and Facilities better manage their
computing resources.
Developing and promoting standards,
Awareness
Why Create Metrics?
• If you can’t measure
it, you can’t improve it
Benchmarking
• Continuous
improvement of
operations
Data Center Power Efficiency Metrics:
PUE and DCiE
PUE= Power Usage Effectiveness =
Total Facility Power
IT Equipment Power
DCiE = Data Center = =
Infrastructure Efficiency
IT Equipment Power
Total Facility Power
1
PUE provides a way to:
Improve a data center’s operational efficiency,
Compares with similar data centers,
Improving the designs and processes over time
Reduce infrastructure-energy consumption
Target or goal for new data centers.
Source: PUE - A Comprehensive Examination of the Metric
13
Illustration of how PUE would be calculated in a data center
Source: PUE - A Comprehensive Examination of the Metric
Measurement
Level 1 (PUE1)
L1 Basic
Level 2 (PUE2)
L2 Intermediate
Level 3 (PUE3)
L3 Advanced
IT equipment
energy
UPS outputs
PDU outputs
IT equipment
input
Total facility
energy
Utility input
Utility input
Utility input
Measurement
interval
Monthly
Daily
Continuous
(15 min or less)
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
15
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
16 Measurement Level 1 (PUE1) L1 Basic Level 2 (PUE2) L2 Intermediate Level 3 (PUE3) L3 Advanced IT equipment energy
Required UPS outputs PDU outputs IT equipment input Total facility
energy
Required Additional
recommended*
Utility input Utility input
UPS inputs/outputs Mechanical inputs Utility input PDU outputs UPS inputs/outputs Mechanical inputs Measurement interval
Required
Additional recommended* Monthly Weekly Daily Hourly 15 min 15 min or less*Recommended measurements are in addition to the required measurements. The additional measurement points are recommended to provide further insight into the energy efficiency of the infrastructure.
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
Required and Recommended Measurement Points and Intervals
17
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
18
• Moving the monitoring location closer to the devices that are consuming the energy enables further isolation of distribution component losses.
• Dividing the Power path in multiple subzone enable better insight power consumption and and where possible efficiency gains can be made
• The data center operator must deal with multiple data collection systems which can be streamlined as integrated-measurement software solutions
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
Critical Power Path Measurement Points
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Efforts should be directed at determining the energy usage by system, including but not limited to the following examples:
Cooling plant Chillers Towers Pumps Economizers Thermal storage Secondary chilled-water CRAHs Lighting
Fans (fresh air and exhaust) Security
Fire suppression systems
Source: PUE - A Comprehensive Examination of the Metric
PUE Overview
Critical Mechanical Path Measurement Points
Addressing Challenges thru sub-zones
Power and energy management issues can be identified and resolved throughout all zones
1
1: Billing Reconciliation – Monitors the building
utility metering “Point of Entry”, providing power, oil, water, and gas consumption information and CO2 emissions.
2
2: Switchboard Distribution Board - Monitors
sub meters at the main distribution board for DC related equipment.
3
3: Plant Equipment - Distributed monitoring of
supporting facility services, including individual chillers, AHU, CRAC, UPS and lighting circuits.
4
4: Branch Circuit Monitoring of Data Hall –
Focuses on monitoring of total rack or cabinet IT loads and environmentals.
5
5: Rack & Cabinet Level Monitoring –
Intelligent monitoring and control of power
6
6: Device Level Monitoring –monitoring and
control of per outlet or device power, within a data center.
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3
Water Power In Gas
Main MV / LV Distribution Board (A or B)
Lighting Boilers Fire Security Chillers CRAC Back up
Generator
UPS
Sub PDU
Data Hall Environmental
Data Rack or Free Standing Equipment Individual Payloads & Devices
Power Monitoring Appliances
1 2 4 5 6 Oil
PUE Overview
SOURCE ENERGY
Energy Type
Weighting Factor
Electricity
1.00
Natural gas
0.35
Fuel oil
0.35
Other fuels
0.35
District chilled water
0.35
District steam
0.40
Source: PUE - A Comprehensive Examination of the Metric
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Measure PUE
Report PUE
Source: PUE - A Comprehensive Examination of the Metric
Sample PUE Report
Interpretation
2.25 PUE L1, Single PUE measurement (2.25) taken using a level 1 meter placement
1.95 PUE L1, YM Yearly average PUE (1.95) using data points gathered monthly with a level 1 meter placement
1.6 PUE L1, MW Monthly average PUE (1.6) using data points gathered weekly with a level 1 meter placement
2.43 PUE L1, WD Weekly average PUE (2.43) using data points gathered daily with a level 1 meter placement
1.8 PUE L2, WC Weekly average PUE using data points gathered continuously with a level 2 meter placement
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Class of Measurement
Class Description Benefit to reporting organization
unrecognized A publicly reported result with no claims of following TGG’s guidelines. TGG will not comment on
unrecognized results
Reported A publicly reported result by the reporting organization claiming they followed TGG’s
measurement recommendations and nomenclature guidelines. TGG will not comment on reported results.
Reporting organization can use standard materials from The Green Grid to
explain process and results to audience
Registered A publicly reported result, with key report contextual data provided to TGG by the reporting organization to TGG’s data center performance database.
Official registration of reported results. Receipt of registration number from TGG. Link to public report data from TGG’s website.
Certified A publicly reported results, with key additional data required for third-party validation or certification of results, provided to TGG by the reporting
organization.
All benefits applicable to registered results, plus, consideration of reported results in future TGG award or
Agenda:
1. Data Center Challenges
2. Power Usage Effectiveness Overview
DCIM Software provides:
• A single reporting platform for
multiple data sources across all zones • Strong reporting, visualization &
analytics
• Scalable, highly accurate energy, environmental and physical security monitoring
• Unrivalled levels of granular
monitoring with exceptional accuracy • Real time dynamic and historical
reporting
• Business intelligence to improve efficiencies and reduce costs
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Helping you to:
• Drive operational advantages,
sustainability benefits, and optimization programs
• Reduce OPEX
• Optimize capacity management
• Support centralized management and transparency of information
• Drive efficiency with a single pane of glass
