Managing the FastIron Stackable Chassis
June 2006
© 2006 Foundry Networks, Inc.
5 - 3
Syntax:
temperature warning <value>
The <value> can be 0 – 125.
To change the shutdown temperature, enter a command such as the following at Privileged EXEC level of the CLI:
FES Switch# temperature shutdown 57
Syntax:
temperature shutdown <value>
The <value> can be 0 – 125.
Changing the Chassis Temperature Polling Interval
The software reads the temperature sensor and polls other hardware sensors according to the value set for the
chassis poll time, which is 60 seconds by default. You can change the chassis poll time using the CLI.
To change the chassis poll time, enter a command such as the following at the global CONFIG level of the CLI:
FES Switch(config)# chassis poll-time 200
Syntax:
chassis poll-time <value>
The <value> can be 0 – 65535.
Managing the FESX and FWSX
Fan Settings and
Temperature Sensors
The FESX and FWSX devices have two three-speed fans that operate at low speed, then adjust based on the
ambient temperature and configured or default temperature thresholds. Both fans operate simultaneously at the
same speed. If one fan fails, it does not affect the operation of the other fan.
The fans can operate at speeds of low, medium, and high. The system uses a
fan speed switch
and a default or
configured temperature threshold associated with it to determine at which speed a fan should operate. Fan speed
switches are as follows:
•
slow-to-medium
•
medium-to-slow
•
medium-to-fast
•
fast-to-medium
If desired, you can change the settings of the temperature thresholds associated with fan speed switches. See
“Changing the Temperature Threshold for a Fan Speed Switch” on page 5-4.
About the Temperature Sensors for Fan Speed Switches
The FESX and FWSX devices include two temperature sensors; one at the air intake, and the other at the
exhaust. The FESX and FWSX devices use the exhaust-side temperature sensor against the configured or
default temperature threshold to determine at which speed the fans should operate.
By default, the system polls the temperature sensor on the system every 60 seconds to get a temperature reading.
Depending on the temperature readings for the system, the system can do the following:
•
Leave the fan speed as is
•
Increase the fan speed
•
Decrease the fan speed
•
Shut down a module to prevent damage
If desired, you can change the chassis polling interval for temperature sensors. See “Changing the Chassis
Temperature Polling Interval” on page 5-3.