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Cork Internet eXchange (CIX) is a hyper energy-efficient data centre. In this talk I outline some of the simple steps taken by CIX to achieve this status
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Reducing your Costs and your Carbon
FootprintTom Raftery
Blog: cix.ie / tomrafteryit.netPodcast: www.podleaders.com
Email: [email protected]
CIX
• Cork Internet eXchange - CIX• First hyper energy-efficient data centre
Geek Porn
Geek Porn
Geek Porn
Geek Porn
Geek Porn
Geek Porn
CIX Vision
• Energy-Efficient data centre• Why?• How?
Why? Climate change
Why?
• DC running costs• Staffing - controllable• Connectivity - decreasing• Energy - increasing
DC Energy requirements
• Rack of equipment typically used• 1.5 kW 8 years ago• 4.5 kW 5 years ago and• 15 kW in 2006!
Optimal DC environment
DC Energy Flow
Free Cooling
DC Energy Flow
Max Temp
DC Energy Flow
Minimise Humidification
DC Energy Flow
Water mixing
DC Energy Flow
Air mixing
Typical DC
Also
• Low resistance, slow speed air paths• Dimplex heat exchange unit
• Servers heat the CIX offices!
Power
• 10kv low impedence looped connection to the national grid
• Using GE Super ECO UPS’s offering >98% efficiency
Power
•Normal mode• The output voltage is newly generated,
independently from the input voltage• Heat losses are present in rectifier and inverter
•Super Eco Mode• Load is supplied via the bypass• UPS rectifier keeps the battery charged• UPS inverter switched off
(no heat losses)
Super Eco Mode
Normal mode
Inverter
DC
Battery bank
AC
ACDC
Static bypass
Rectifier
Bypass supply
LoadRectifier
supply
Inverter
DC
Battery bank
AC
ACDC
Static bypass
Rectifier
Bypass supply
LoadRectifier
supply
Transf.Good!
End Result
Standard DC CIXChiller
HumidifierCRAC
IT EquipmentPDUUPS
LightingSwitch Gear
33% 12%3% <1%9% 4%30% 80%5% 0.01%18% <2%1% <1%1% 1%
Conclusion
• Simple steps taken• Large savings and USP
References
• Uptime Institute - www.upsite.com
• APC - www.apc.com
• GE - www.ge.com
• CIX Energy Efficiency White Paper - www.cix.ie/air-conditioning-efficiency-at-the-cix-data-centre
