data center server rack strategies
DESCRIPTION
Enclosure Strategies for Efficiency – Data Center Efficiency Best-Practice Starts with Your Racks Historically, Data Center managers didn't invest much thought in their deployment of server racks beyond basic functionality, air flow, and the initial cost of the rack itself. Today, the widespread deployment of high-density configurations is causing major hot spot concerns and capacity issues. These factors, along with the high cost of power, require a sound understanding of how your server rack deployment plan relates to your overall efficiency strategy. To view the recorded webinar presentation, please visit http://www.42u.com/enclosure-strategies-webinar.htmTRANSCRIPT
42U Confidential ©2008 42U All rights reserved Slide 1
Enclosure Strategies for Efficiency – Data Center Efficiency Best-
Practice Starts with Your Racks
September 5, 2008
________________________________
Overview
• Business Factors
• Data Center Strategy
• Rack Designs
• Rack Arrangement
• Rack Configuration
• Summary
• Q&A
42U Confidential ©2008 42U All rights reserved Slide 2
Business Factors
• Service Level Agreement (SLA)– N+1 and 2N Requirements
• Information Technology Infrastructure Library (ITIL)
• Total Cost of Ownership (TCO)
• Stranded Capacity
42U Confidential ©2008 42U All rights reserved Slide 3
Efficiency Drivers
• Rising Energy Costs• Physical Limitations
– Building Infrastructure– Utility Capabilities
• Mandates– Carbon Tax– Utility Initiatives– C-Level Need for ‘Green’ Message
42U Confidential ©2008 42U All rights reserved Slide 4
Energy Cost Projection
42U Confidential ©2008 42U All rights reserved Slide 5
Source: Uptime Institute
Data Center Strategy
• Virtualization
• Blades
• Application Expansion
• Facilities
• Power Management
• Air Handling Infrastructure
42U Confidential ©2008 42U All rights reserved Slide 6
Rack kW Trend
• 10 kW of Load Becoming the Norm
• Continued Increasing Density
42U Confidential ©2008 42U All rights reserved Slide 7
Source: IDC, The Impact of Power and Cooling on Data Center Infrastructure
Energy Consumers
• 70% of Power Consumption Goes to the Infrastructure
• Over Twice that of the IT Equipment
42U Confidential ©2008 42U All rights reserved Slide 8
Source: The Green Grid, Guidelines for Energy-Efficient Datacenters
Functional Limitations
• CRACs Are Reaching Their Functional Limits
42U Confidential ©2008 42U All rights reserved Slide 9
Source: Aperture, Managing Today’s Data Centers, Avoiding the Impending Crisis
Rack Designs
• 2-, 4-Post Open– Low Heat Equipment
• Perforated– Ambient Cooling– Maximum Thermal Airflow
• Enclosed– Airflow Control– In-Row Cooling
42U Confidential ©2008 42U All rights reserved Slide 10
Efficiency Strategies
• Variable-Speed Fans• Power Design• Modularity• Airflow Control
– Perforated Tile Configuration– Blanking Panels– Floor Grommets– Containment
42U Confidential ©2008 42U All rights reserved Slide 11
Density Distribution
• Close-Coupled Cooling
• High-Density Checkerboard
42U Confidential ©2008 42U All rights reserved Slide 12
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
42U Confidential ©2008 42U All rights reserved Slide 13
Results of Floor Tile Tuning
• Improved Under-Floor Pressure
• Measurable Correlation to Cooling Efficiency
Under-Floor Pressure
Rack-Top Temperatures
42U Confidential ©2008 42U All rights reserved Slide 14
Rack Management
• Hot/Cold Aisle
• Density Distribution Scheme• Modularity• Structured Cabling
42U Confidential ©2008 42U All rights reserved Slide 15
Source: APC, Ten Cooling Solutions, #42
Airflow Containment
• Aisle Containment
• 30-49% Increase in CRAH/CRAC Capacity
42U Confidential ©2008 42U All rights reserved Slide 16
Source: Accenture/LBNL Air Flow Study 2007
Hot Aisle Containment
• 40% Reduction in Fan Energy
42U Confidential ©2008 42U All rights reserved Slide 17
Source: Accenture/Oracle Data Center Air Flow Management – Hot Aisle Containment
Cold Aisle Containment
• 75% Reduction in Fan Energy
42U Confidential ©2008 42U All rights reserved Slide 18
Source: Accenture/LBNL Air Flow Study 2007
Efficiency Checklist
• Reduce Your Electric Bills– 20-50% for
No/Low-Cost Design and Operations Changes
42U Confidential ©2008 42U All rights reserved Slide 19
Source: The Green Grid, Guidelines for Energy-Efficient Datacenters
Summary
• Consider the Big Picture
• Rack Configuration Plan
• Rack Layout Plan
• Airflow Containment
• Efficiency Improvement Plan
42U Confidential ©2008 42U All rights reserved Slide 20
Q&A
42U Confidential ©2008 42U All rights reserved Slide 21
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