Oracle X8-8, Installation Manual

Page: 16 / 134

Environmental Requirements
Specification Operating Nonoperating
IEC 60068-2-27 Test Ea Threshold: 13 mm threshold height at
0.65 m/s impact velocity
ETE-1010-02 Rev A
Related Information
■
“Temperature Guidelines” on page 16
■
“Humidity Guidelines” on page 16
■
“Ventilation and Cooling Requirements” on page 17
Temperature Guidelines
An ambient temperature range of 21
°
to 23
°
Celsius (70
°
to 74
°
Fahrenheit) is optimal for
server reliability and operator comfort. Most computer equipment can operate in a wide
temperature range, but approximately 22
°
Celsius (72
°
Fahrenheit) is recommended because it
is easier to maintain safe humidity levels. Operating in this temperature range provides a safety
buffer in the event that the air conditioning system is not running for a period of time.
Humidity Guidelines
The server ambient relative humidity range of 45 to 50 percent is acceptable for safe data
processing operations. An ambient relative humidity optimal range of 45 to 50 percent can:
■
Help protect computer systems from corrosion problems associated with high humidity
levels.
■
Provide the greatest operating time buffer in the event of air conditioner control failure.
■
Help to avoid failures or temporary malfunctions caused by intermittent interference from
static discharges that might occur when relative humidity is too low. Electrostatic discharge
(ESD) is easily generated and not easily dissipated in areas where the relative humidity level
is below 35 percent. ESD risk becomes critical when levels drop below 30 percent.
Most computer equipment can operate in a wide range (20 to 80 percent), but 45 to 50 percent
is the recommended optimal range for the reasons listed.
16 Oracle Server X8-8 Installation Guide • June 2019