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2: The Basics of Green IT 31

increased, so has heat dissipation in the data center, requiring increases
in cooling capacity. Most IT spokesmen believe that to sustain greening,
there will be increasing adoption of virtualization, consolidation,
automation, and standardization. Virtualization is universally accepted
as a key to necessary cost-savings, despite the complex data center envi-
ronment. Companies with server or storage virtualization deployments
face low data center spending. Also, standardizing on a single layer of
infrastructure software that supports all major storage and server hard-
ware platforms can protect information and applications, enhance data
center service levels, improve storage and server utilization, and drive
down operational costs.
Figure 2.3 gives an overview of all the data center energy-efficiency
considerations for green IT.

Data Center Talking Points

Integrated Infrastructure Electrical
• Industry-leading integration of IT equipment and building management • Utility capacity, reliability, and robustness (reliability)
systems (BMS) to automatically optimize to varying IT equipment • Dual feeds to distribution panels for IT loads ptg
configurations and building loads • Monitoring of branch circuits at PDU/RDC level
• Provides for future integration with IBM Systems Management • ARC flash assessment
software products and allows development of additional energy- • 6, 10, 15 mwh 3 phases (modularity, flexibility)
efficiency software programming, data mining, and analysis • High density zones
• Backup and recovery offering • 480V equipment (flexibility, energy)
• Virtualization offerings • Catcher bus maintenance (reliability) (design TBD)
• 3D billing with energy rider • High-efficiency static double-conversion UPS (energy)
• Timestamps—faults are recorded at same time/waveform
capture (reliability)
• PLC building control system (efficiency/reliability)
• Double-ended substations (reliability)
• Note: No mention of amount of space or power density
(intentional)
Architectural Mechanical
• Experiential customer interface (customer facing) • Variable speed CRAC and chillers (energy)
• State-of-the-art building technology • Removal of CRAC filters after start-up (energy)
• LEED silver or gold • Elevated temperature and humidity criteria (energy)
• Viewing area/visitor center displays • Rainwater harvesting and reuse (green)
• Base build (not a retrofit) • Provisions for direct water-cooled equipment (flexibility)
• Reflective roof (energy) • VESDA air sampling fire detection system (no false alarms)
• Flex-head sprinkler assemblies (flexibility)
• Chilled water storage +1m gal condenser water (resiliency)
• Water-side economizing
• Under floor static air pressure controls (resiliency)
• 360 degree design for chilled water allows for zone
maintenance
Source: IBM Big Green Team
Figure 2.3 Data center energy-efficiency considerations