Environmental Requirements - Lenovo ThinkSystem DS Series Hardware Installation And Maintenance Manual

3-Weights may vary due to different power supplies, IOMs, and differing calibrations between scales.
4-Weights may vary due to actual number and type of disk drives (SAS or SSD) and air management modules installed.

Environmental requirements

Table 32 Ambient temperature and humidity
Specification
Operating
Non-operating (shipping) -40ºC to +70ºC (-40ºF to
Specification
Airflow
Altitude, operating
Altitude, non-operating
Shock, operating
Shock, non-operating
Vibration, operating
Vibration, non-operating 1.04 G
Vibration, relocation
Acoustics
Orientation and
mounting:
• Rack rails
• Rack characteristics
Temperature range
RBOD: 5ºC to 35ºC (41ºF to
95ºF)
EBOD: 5ºC to 40ºC (41ºF to
104ºF)
+158ºF)
Measurement/description
System must be operated with low pressure rear exhaust installation.
Back pressure created by rack doors and obstacles not to exceed 5Pa (0.5 mm
H O)
2
2U enclosures: 0 to 3,000 meters (0 to 10,000 feet)
Maximum operating temperature is de-rated by 5ºC above 2,133 meters (7,000
feet)
5U enclosures: -100 to 3,000 meters (-330 to 10,000 feet)
Maximum operating temperature is de-rated by 1ºC above 900 meters (3,000 feet)
-100 to 12,192 meters (-330 to 40,000 feet)
5.0 g, 10 ms, ½ sine pulses, Y-axis
2U enclosures: 30.0 g, 10 ms, ½ sine pulses
5U enclosures: 30.0 g, 10 ms, ½ sine pulses (Z-axis); 20.0 g, 10 ms, ½ sine pulses
(X- and Y-axes)
0.21 G 5 Hz to 500 Hz random
rms
2 Hz to 200 Hz random
rms
0.3 G 2 Hz to 200 Hz 0.4 decades per minute
rms
Sound power
2U enclosures: L 6.6 Bels (re 1 pW) @ 23ºC

WAd
5U enclosures: L 8.0 Bels (re 1 pW) @ 23ºC

WAd
19" rack mount (2 EIA units; 5 EIA units)
To fit 800 mm depth racks compliant with the SSI server rack specification
Back pressure not exceeding 5Pa (~0.5 mm H
Relative humidity
20% to 80% non-condensing
5% to 100% non-precipitating
0)
2
Environmental requirements
Max. Wet Bulb
28ºC
29ºC
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