Preparing for Cooling
■
“Perforated Floor Tiles” on page 110
Environmental Requirements
Condition Operating Requirement Non-operating Requirement Comments
Temperature 5 to 32°C (41 to 89.6°F) -40 to 70°C (-40 to 158°F). For optimal rack cooling, data
center temperatures from 21 to
23°C (70 to 47°F)
Relative humidity 10 to 90% relative humidity,
noncondensing
Up to 93% relative humidity. For optimal data center
rack cooling, 45 to 50%,
noncondensing
Altitude 3048 m (10000 ft.) maximum
†
12000 m (40000 ft.). Ambient temperature is de-rated
by 1 degree Celsius per 300 m
above 900 m altitude above sea
level
†
Except in China where regulations may limit installations to a maximum altitude of 2000 m (6560 ft.).
Related Information
■
“Heat Dissipation and Airflow Requirements” on page 107
■
“Perforated Floor Tiles” on page 110
Heat Dissipation and Airflow Requirements
The following table lists the maximum rate of heat released from a system. In order to cool the
system properly, ensure that adequate airflow travels through the system.
TABLE 17
SuperCluster T5-8 Specifications
Comments Full Rack Half Rack
Maximum 54,405 BTU/hour 31,013 BTU/hour
57.4 kJ/hour 32.69 kJ/hour
Typical 45,422 BTU/hour 25,591 BTU/hour
47.8 kJ/hour 26.97 kJ/hour
TABLE 18
Exadata X5-2 Expansion Rack Specifications
Configuration BTU/Hour kj/Hour
EF Quarter rack Maximum 12,362 13,042
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