7 Managing the cooling system
Changing the temperature polling interval
By default, the router reads the temperature sensor on each module every 60 seconds. To change the polling interval, enter the
Brocade(config)#
Syntax: temp-poll-period <seconds>
For the <seconds> parameter, you can specify a value from 30 – 120.
NOTE
Adjusting temperature polling interval out of the default setting can negatively affect the efficient cooling of blades and may cause a blade to overheat and shutdown.
Manually setting the fan speed
Typically, the management module, in conjunction with default settings of low and high temperature thresholds, determines the speed of the two
NOTE
Auto control of fan speed is not monitored when cards are in interactive mode. Set fan speed to high to prevent
NOTE
Setting a value other than auto or high disables auto fan control and will negatively affect the efficient cooling of blades and may cause a blade to overheat and shutdown.
For example, to set the speed of fan 0 to
Brocade#
Syntax: set-fan-speed <fan-speed>
For the
•auto – The system is adjusted by the monitoring system.
•high – The system sets the fan speed to high.
•low – The system sets the fan speed to low.
•med – The system sets the fan speed to medium.
•
Monitoring the cooling system
You can monitor the following aspects of the router cooling system:
•The temperature of the fan control modules
•The status and speed of the fans
•The temperature warnings sent to the system log and that generate an SNMP trap
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