Brocade Communications Systems S3-1002483-03 manual Manually setting the fan speed

Managing the cooling system 4

Changing the temperature polling interval

By default, the BigIron RX Series system reads the temperature sensor on each module every 60 seconds. To change the interval at which the system reads the temperature sensors on each module, enter a command such as the following at the global CONFIG level of the CLI:

BigIron RX(config)# temp-poll-period 120

Syntax: temp-poll-period <seconds>

For the <seconds> parameter, you can specify a value from 30 – 120. You can also specify 0, which disables the system from polling the temperature sensor on each module.

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 four-speed fans. (For information about changing the low and high temperature thresholds, refer to “Changing temperature thresholds for modules and fan speeds” on page 83.) If desired, you can manually set the speed of the fans. The set-fan-speedcommand in the Global CONFIG level of the CLI allows you to manually set the speed of the fans.

For example, to set the speed of fan 0 to medium-high, enter the following command:

BigIron RX(config)# set-fan-speed med-hi

Syntax: set-fan-speed <fan-speed>

For the <fan-speed> parameter, you can specify the following:

•auto – The system is adjusted by the monitoring system.

•hi – 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.

•med-high – The system sets the fan speed to medium-high.

Monitoring the cooling system

You can monitor the following aspects of the BigIron RX Series 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

Displaying fan tray status and speed

The CLI provides two commands that allow you to display the status and speed of the four-speed fans in the BigIron RX Series chassis. To display this information, you can enter the following command at any level of the CLI:

Brocade BigIron RX Series Hardware Installation Guide	87
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