Brocade FastIron SX Series Chassis Hardware Installation Guide - Manual (Page 103)

Speed 4: 50<----->80 deg-C (shutdown)
...
Syntax: show chassis
Shutdown warning messages
If any thermal plane exceeds the shutdown temperature level, the Brocade device will display a
shutdown warning message on the console every five seconds until either the temperature level goes
back down below the shutdown temperature level, or the system shuts down the chassis to prevent
further damage (shutdown occurs after five minutes of exceeding the shutdown temperature level).
The shutdown warning messages indicate the thermal plane that triggered the warning and the number
of seconds before the device will shut down. The following shows an example warning message.
!!! Temperature of SWITCH FABRIC CARDS THERMAL PLANE is over shutdown level, system
is going to be shutdown in 300 seconds !!!
Changing the temperature polling interval
By default, the Brocade device reads the temperature sensor on each module every 60 seconds. To
change the interval at which the system reads the temperature sensors, enter a command such as the
following at the global CONFIG level of the CLI.
device(config)# chassis poll-time 120
Syntax: chassis poll-time seconds
For the second variable, you can specify any number of seconds. If you specify 0, the system reverts to
60 seconds, the default value.
Manually setting the fan speed
NOTE
Use caution when manually setting the fan speed, since this could adversely affect the device’s
performance.
Typically, the temperature of the thermal planes, in conjunction with the settings of low and high
temperature thresholds, determine the speed of the fans. If desired, you can use the fan-speed
command to manually set the speed of the fans.
For example, to set the speed of all fans to low, enter the following command.
device# fan-speed 1
Syntax:fan-speed fan-speed
The fan-speed can be one of the following.
1 - low
2 - medium-low
3 - medium
4 - high
Shutdown warning messages
Brocade FastIron SX Series Chassis Hardware Installation Guide 101
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