166 Brocade MLXe Series Hardware Installation Guide
53-1003030-01
Managing the cooling system
5
For information about checking the current low and high temperature threshold settings for
modules and fan speeds, refer to “Displaying temperature thresholds for modules and fan speeds”
on page 167.
Adjusting fan controls out of the default setting can negatively affect the efficient cooling of blades
and may cause a blade to overheat and shutdown.
You can change the default low and high temperature thresholds for a particular module and fan
speed. For example, to change the low and high thresholds of the medium fan speed for the
management modules to 56
° C and 72 °s C, respectively, enter the following command at the
global CONFIG level of the CLI.
Brocade(config)# fan-threshold mp med 56 72
Syntax: fan-threshold module [low high-threshold] [med low-threshold high-threshold] [med-hi
low-threshold high-threshold] [high low-threshold high-threshold]
For the module parameter, you can specify the following:
Medium-high 62° C80° C
Medium 58° C75° C
Low –1° 70° C
Generation 2 Interface modules Packet Processor
High 74° C113° C
Medium-high 70° C87° C
Medium 66° C85° C
Low –1° 83° C
Switch fabric module
High 47° C75° C
Medium-high 37° C50° C
Medium 27° C40° C
Low –1° 30° C
High-Speed Switch fabric module
High 62° C100° C
Medium-high 57° C70° C
Medium 53° C65° C
Low –1° 60° C
TABLE 34 Default temperature thresholds for modules and fan speeds for Brocade MLXe devices (Continued)
Fan speed Low temperature threshold High temperature threshold
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