Best Practice
Physical Datacenter Infrastructure
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ELECTRONICS PROTECTION - MARKUS GERBER
What do you fear?
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Down Time?
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Operating Costs?
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THE SERVER RACK
• Features
– Static load
Stability, do not trial
– Grounding
Zero incidents
– Locking
Last protection
SECURE
Not just bended metal
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ELECTRONICS PROTECTION - MARKUS GERBER
THE SERVER RACK
Cabling Zones
• Features
– Structured cable management
Air resistance, bending
– Color
75% reduction of required floor lamps
– Air panels/gaskets
Air recirculation
EFFICIENT
Not just bended metal
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ELECTRONICS PROTECTION - MARKUS GERBER
COOLING KEY FUNCTION
• Challenges
–Thermal failures is root cause for 55% of equipment
down time
–Cooling requires still 20% to 30% of the overall energy
consumption of a data center
• Cooling needs to be…
– aligned with the used IT-Equipment
– adapted to the different conditions on site
– chosen to fulfill the requirements on availability
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OVERVIEW : COOLING SOLUTIONS
• Room based cooling
– Containment, CRAC is providing cold air over the raised floor
• Row based cooling
– Active cooling device is integrated into the cabinet row
• Rack based cooling
– Active cooling device a the rack level
Efficient Cooling is optimized “air management”
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Containment is state of the art
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CONTAINMENT - WHAT NEEDS TO BE CONSIDERED?
• Automatic closing aisle doors
– Pay attention to emergency routes
• Cooling for side-to-side cooled
equipment
– Use air blanking panels
• Integration of third party cabinets
– Flexible aisle top cover system
• High transparent top covers
– Usage of room lightning
• Physical limitations regarding air volume and pressure drop
• Regulation when different computing power occurs
Max 6-10 kW heat dissipation per rack
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RACK- AND ROW BASED COOLING SOLUTIONS
Rear Door
Active/Passive
–
–
–
–
Rack integrated
cooler
Independent from the room layout
Air flows can be easier calculated
Raised floor not mandatory
Higher heat loads
Which solution fits best for me?
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In row cooler
BASICS: AIR/WATER HEAT EXCHANGER
Coil
Valve with
actuator
1. Hot air is moved through a coil.
Temperature
sensors
2. Heat is transferred to the water
(cooling medium) and carried
away
Fans
Condensate
Management
3. According to a set
temperature the water
volume is adjusted.
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ELECTRONICS PROTECTION - MARKUS GERBER
EXAMPLE: WORKING PARAMETERS COOLING DEVICE
Water inlet 12 °C
With 12 °C water inlet temperature
and 20 °C cold air temperature
(Delta T cold/hot 13 K)
the cooling capacity is 24 kW
With 12 °C water inlet temperature
and 24 °C cold air temperature
(Delta T cold/hot 20 K)
the cooling capacity is 34 kW
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COMPARISON: COOLING SOLUTIONS
Rear Door Cooling
Rack based cooling
In row cooling
Noise
No additional noise
Minimal as closed
cabinets
Depends the
required air volume
flow
Server assembly
Relative homogeny
Heterogenic
Heterogenic
Cooling capacity
Redundancies
Maintenance
Energy-Efficiency
*Comparison does not include data center size.
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Every Data Center is different
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Markus Gerber
Product Marketing Cabinets
Phone +49.1709285538
[email protected]
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