Brocade VDX 8770-4 Hardware Reference Manual - Manual (Page 39)

Brocade VDX 8770-4 Hardware Reference Manual 19
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Preparing for the Brocade VDX 8770-4 installation
2
Environmental requirements
DANGER
Do not install the device in an environment where the operating ambient temperature might
exceed 40°C (104°F).
Table 6 lists the environmental operating ranges for the Brocade VDX 8770-4. The requirements for
non-operating conditions are also provided for acceptable storage and transportation
environments.
NOTE
The 0  to 40  C (32  to 104  F) range applies to the ambient air temperature at the air intake vents
on the left side (as you face the port side) and port side of the Brocade VDX 8770-4.
The temperature inside the Brocade VDX 8770-4 can be up to 90°C (194  F) for some modules
during operation. Brocade recommends that the internal temperature not exceed 75°C (167  F).
Cooling policy is based on a combination of ambient temperature and measured temperature on the
modules. Various combinations will result in an increase in fan speed to create more cooling in the
switch.
If a component approaches a critical temperature that will trigger a module shutdown, there will be
a WARNING message in the RASlog, followed by a CRITICAL message saying that the module will
shut down in two minutes.
Use the show environment command to view temperature status.
TABLE 6 Environmental requirements
Condition Acceptable range during operation Acceptable range during non-operation
Ambient temperature 0

to 40

C (32

to 104

F) outside
switch
-25

to +70

C (-13

to 158

F) outside
switch
Humidity 5% to 90% RH noncondensing, at 40  C
(104

F), with maximum gradient of 10%
per hour
10% to 90% RH noncondensing, at 70

C
(158

F)
Altitude 0 to 3 km (10,000 ft.) above sea level 0 to 12 km (40,000 ft.) above sea level
Shock 20G, 6 ms duration, half-sine wave 33G, 11 ms duration, half-sine wave
Vibration 0.5G p-p, 5-500 Hz at 1.0 octave/minute 2.0G p-p, 5-500 Hz at 1.0 octave/minute
Airflow Maximum: 675 cu ft/min. (1147 cu m/hr)
Nominal: 200 cu ft/min. (340 cu m/hr) None required
Maximum heat
dissipation Up to 6000W or 20,500 BTU/hr Not applicable