Contents 105
Environmental specifications
Table 20
System environmental specifications
Item Description
System inlet temperature
1
Operating
Non-operating
10
°
to 35°C (50
°
to 95°F)
2
30
°
to 60°C (-22
°
to 140°F)
Relative humidity (non-
condensing)
Operating
Non-operating
10 to 90% RH at 28°C (82.4°F) maximum wet bulb temperature
5 to 95 % RH at 38.7°C (101.7°F) maximum wet bulb temperature
Altitude
Operating
Non-operating
3050 m (10,000 ft)
3
9144 m (30,000 ft)
4
Acoustic noise
5
Idle, minimum (fixed disk drives
spinning)
Operating, minimum (random
seeks to fixed disk drives)
LWAd: 6.22 bels
LpAm: 43.8 dBA
LWAd: 6.24 bels
LpAm: 44 dBA
1
System performance may be reduced if operating with a fan fault or above 30°C (86°F).
2
At sea level with an altitude derating of 1.0°C per every 305 m (1.8°F per every 1000 ft) above sea level to
a maximum of 3050 m (10,000 ft). No direct sustained sunlight. Maximum rate of change is 10°C/hr
(18°F/hr). The upper limit may be limited by the type and number of options installed.
3
This value may be limited by the type and number of options installed. Maximum allowable altitude change
rate is 457 m/min (1500 ft/min).
4
Maximum allowable altitude change rate is 457 m/min (1500 ft/min).
5
Acoustic noise units of measurement:
Bel – sound intensity LWAd – sound power
LpAm –sound power level dBA – A-weighted decibel
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