Brocade Communications Systems MLX Series Installation Manual page 351

Table 49
Brocade MLX and Brocade NetIron XMR routers.
TABLE 49
Fan speed
Management modules
High
Medium-high
Medium
Low
Interface modules
High
Medium-high
Medium
Low
Switch fabric module
High
Medium-high
Medium
Low
For information about checking the current low and high temperature threshold settings for
modules and fan speeds, refer to
on page 334.
NOTE
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
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>]
For the <module> parameter, you can specify the following:
•
•
•
•
Brocade MLX Series and Brocade NetIron XMR Hardware Installation Guide
53-1002373-02
describes default low and high temperature thresholds for each module and fan speed for
Default temperature thresholds for modules and fan speeds for Brocade MLX and Brocade NetIron
XMR devices
Low temperature threshold
77 C
67C
57C
–1
56 C
51C
46 C
–1
72 C
67 C
57C
–1

[med-hi <low-threshold> <high-threshold>] [high <low-threshold> <high-threshold>]
lp – Changes low and high temperature thresholds for interface modules
mp – Changes low and high temperature thresholds for management modules
mp-cpu – Changes low and high temperature thresholds for the management module CPU
switch fabric – Changes low and high temperature thresholds for switch fabric modules
"Displaying temperature thresholds for modules and fan speeds"
C and 72 s C, respectively, enter the following command at the

Managing the cooling system
High temperature threshold
85C
80C
70C
60C
95C
60C
55 C
50C
85 C
80C
70C
60 C
7
333