HP StorageWorks SAN Director Installation Guide (A7393-90009, May 2007)

Technical specifications204
Environmental requirements
Table 52 lists the environmental operating ranges for the 4/256 SAN Director. The requirements for
non-operating conditions are also provided for acceptable storage and transportation environments.
NOTE: The 10° to 40° Celsius range applies to the ambient air temperature at the air intake vents
on the nonport side of the switch.
The temperature
inside the switch can be up to 75° Celsius during switch operation. If the internal
temperature range exceeds the operating ranges of the components, the LEDs, error messages, and
Fabric Watch alerts will indicate a problem. Use the tempShow command or Fabric Watch
commands to view temperature status.
Thermal policy
At 32° Celsius or lower, fans operate at a low speed. When the chassis temperature reaches 33°
Celsius, fan speed increases to high. If any blade within the chassis reaches 60° Celsius, the fan
speed increases to high. If any blade reaches 65° Celsius, the blade is powered down.
Table 52 Environmental requirements
Condition Acceptable range during operation Acceptable range during
Nonoperation
Ambient temperature 10° to 40° Celsius outside switch
(50° to 104° Farenheit)
-40° to +70° Celsius outside switch
(-40° to 158° Farenheit)
Humidity 20% to 85% RH noncondensing, at
40° Celsius, with maximum gradient of
10% per hour
10% to 93% RH noncondensing, at
70° Celsius
Altitude Up to 3 km (10,000 ft.)
above sea level
0 to 12 km (40,000 ft.)
above sea level
Shock 20G, 11ms duration, half-sine wave 33G, 11ms duration, half-sine wave
Vibration 1G p-p, 5-500 Hz at 1.0
octave/minute
2.4G p-p, 5-500 Hz at 1.0
octave/minute
Air flow 350 cu. ft./min.
(0.00059 cu. meter/hr)
None required.
Heat dissipation 720 Watts or 2457 BTU (Eight
FC4-32 blades and two CP4 cards)
Not applicable.