Installation guide

Brocade FastIron LS and FastIron LS-STK Hardware Installation Guide 49
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Chapter
5
Maintaining the FLS and FLS-STK Hardware
Managing FastIron LS temperature settings
DANGER
The procedures in this manual are for qualified service personnel.
This section describes how to display temperature settings on FastIron LS devices, and how to
change the temperature warning and shutdown levels.
NOTE
Maintenance functions for FLS-STK devices that are part of an IronStack are done through the
console connection on the Active Controller for the stack. You can display information about
individual stack units, or for the entire stack.
Using the temperature sensor
FastIron LS and LS-STK devices have two built-in temperature sensors that measure IC and board
temperatures. The temperature sensors cause the device to generate a Syslog message and SNMP
trap if the temperature exceeds a specified warning level or shutdown level. If the temperature
exceeds the safe threshold (shutdown level), the device will reboot.
The software reads the temperature sensors according to the device poll time, which is 60 seconds
by default. If the temperature equals or exceeds the shutdown temperature for five consecutive
polls, the software will reboot the device to prevent damage.
You can use the CLI or Web Management Interface to do the following tasks:
• Display the temperature of the device
• Change the warning and shutdown temperature levels
• Change the device poll time
Displaying the temperature
By default, the software polls the temperature sensor every 60 seconds to get the current
temperature. This poll rate is controlled by the device poll time, which also controls how often the
software polls other system components.