data center power strategies

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

Power Strategies for Data Center Efficiency

– Identifying Cost Reduction Opportunities

October 15, 2008________________________________

Overview

• Importance of Power Efficiency

• Power Flow

• Points to Monitor

• How to Monitor

• Power Management Alternatives

• Summary

• Q&A


Energy Cost Projection


Source: Aperture, Greener Pastures for Your Data Center

Energy Consumers

• Infrastructure Consumes More Power Than The IT Equipment


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

Energy Consumers


Source: Burton Group, Improving Data Center Energy Efficiency: A Holistic Approach

Related Costs


Source: APC

Energy Benchmark

• Established Green Grid Benchmark

• Enables Comparison


Source: The Green Grid

Planned Energy Consumption

• Do You Know Your Planned Watts/Sq. Ft.?


Source: Ziff-Davis, Data Center Power and Heat Management: Ready Or Not?

Planning Context

• SLA Support

• ITIL Compliance

• TCO Precision


Downtime Costs


Data Center Power Flow


Cumulative Loss


Source: Energy Logic

E3 Estimator

• Estimation of Data Center Energy Costs– Industry Benchmark Basis– Multiple Research Resources

• Availability– Spreadsheet Now– 42U Website Soon


Measuring Energy Use


M

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Utility Meter

Facility Meters

IT Meters

M

Source: The Green Grid

Power Consumption Monitoring


RackIn Cabinet

Power Monitoring

CRACFan Speed

PDUCurrent,

Voltage & Power

Panel PowerCRAH Fan

Power

Detailed Load Analysis

• Measurement Techniques– Smart PDUs– Integrated PDU Panel– Actual UPS Load


Cost/Risk-Mitigation Comparison


Basic Power


Advantages Disadvantages

Standardization on a single manufacturer's products, footprint, MTBF expectations, etc.

No additional tools to manage power related issues either locally or remotely

Minimal investment in providing reliable power distribution within the equipment rack

Retrofitting existing environments can be more expensive than perceived benefits

Certain options do include branch-circuit protection to isolate power issues and maintain as much operational equipment as possible

Relatively inexpensive power infrastructure improvement for any size datacenter

Metered Power



Provide visual indicator of amperage draw per circuit within the physical data center environment

While visual indicators are valuable at locations with local IT personnel, these cues don’t provide information to remote resources and IT personnel

Eliminate circuit overload by accurately measuring consumption and allowing IT professionals to maintain optimal 80% power loads

Since there is no ongoing logging availability, trading cannot be utilized for resource planning when adding or changing equipment configurations

Monitored Power



Provide true real-time power status for monitoring purposes and addressing issues as they occur

Information provided can be of significant value, but does not provide the ability to mitigate problems and reduce MTTR from off-site locations

Information can be sent to single or multiple off-site locations for interpretation and selection of appropriate response planning

Important alert information still necessitates involving other support aspects, including non-skilled personnel, third party technicians, or costly truck rolls

As information is being exported from the individual hardware devices, real-time and historical information can be catalogued and stored, and analyzed for troubleshooting and resources planning purposes

Switched Power



Provide out-level control for attached IT resources and ability to hard-boot systems that have failed in the field

Security; once the hardware provide the ability to manage device level power, security processed must be implemented and monitored to ensure procedures cannot be circumvented

Most solutions allow association of multiple power supply devices between multiple circuits to provide consistent power cycling when the need arises

Investments can be more significant that traditional PDU’s – it is important to generate a true ROI for the purchases versus 3rd party technical support, potential issues with non-skilled personnel, truck roll expenses, etc.

Load-shedding technology can monitor power issues and reduce power consumption as factors arise, such as UPS battery activation temperate thresholds exceed pre-defined limits, etc.

Power-up sequencing ensures that if a critical power failure occurs, all of the outlets of a specific PDU are not all turned on at once, causing a detrimental power in-rush

Graceful shutdown agents can be implemented to perform clean OS shutdown when the need to remove power arises

High Amperage PDUs

• Increased Efficiency

• Supports High Density

• Outlet Level Control


High Efficiency UPS

• Modular– Planned

Expansion– Efficient

Capacity Alignment

• Hybrid Design


Remote Power

• Proactive Approach

• Internet Access to Infrastructure

• Predetermined Alerting

• Immediate Response to Alerts


Remote Power ROI

• 72% of Technician Calls are Resolved with a Re-Boot

• Average Service Call Cost is $500

• Downtime Reduced from 1.5 Hours to Minutes


Summary

• Power Cost

• Cumulative Power Cascade

• Monitoring

• Strategies

• Technologies


Efficiency Checklist

• Reduce Your Electric Bills– 20-50% for No/Low-

Cost Design and Operations Changes

– 90% for a Systematic Approach


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

Q&A


For More InformationContact Your 42U

Data Center Efficiency Consultant:

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

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