Brocade Communications Systems MLX Series Hardware Installation Manual page 253

TABLE 37
Fan speed
Generation 2 Interface modules
High
Medium-high
Medium
Low
Generation 2 Interface modules Packet Processor
High
Medium-high
Medium
Low
Switch fabric module
High
Medium-high
Medium
Low
High-Speed Switch fabric module
High
Medium-high
Medium
Low
* The fan-threshold values in brackets are for 8-slot devices.
For information about checking the current low and high temperature threshold settings for
modules and fan speeds, refer to
on page 238.
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 NetIron XMR Hardware Installation Guide
53-1003821-01
Default temperature thresholds for modules and fan speeds for Brocade MLX and NetIron XMR
devices (Continued)
°
[med-hi <low-threshold> <high-threshold>] [high <low-threshold> <high-threshold>]
lp – Changes low and high temperature thresholds for Gen 1 interface modules
Low temperature threshold
56° C
51° C
46° C
–1°
70° C
60° C
45° C
–1°
47° C
37° C
27° C
–1°
65° C
55° C
45° C
–1°
"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
95° C
60° C
55° C
50° C
113° C
80° C
65° C
50° C
75° C
50° C
40° C
30° C
100° C
70° C
60° C
50° C
6
237