Installation Guide

Table Of Contents
Brocade MLX Series and Brocade NetIron XMR Installation Guide 223
53-1004195-03
Managing the cooling system
If the system is operating in Turbo mode, standard switch fabric modules (G1) and standard (G1) interface modules are
automatically blocked.
If there are any active G1 switch fabric modules, G2 interface modules are blocked.
If there are any active G2 interface modules, G1 switch fabric modules are blocked.
Forcing HSF modules to operate in normal mode
NOTE
This procedure requires that you restart your router.
If necessary, you can configure HSF modules to operate in normal mode using the system-init fabric-data-mode force normal
command.
Brocade(config)# system-init fabric-data-mode force-normal
Syntax: [no] system-init fabric-date-mode force-normal
If you remove the forced normal condition using the no version of this command, you must enter the write-memory command and
restart the router.
Blocking discovery of G1 switch fabric modules
NOTE
This procedure requires that you restart your router.
In a router with both standard (G1) switch fabric modules and G2 HSF modules, you can block the discovery of the G1 switch fabric
modules by entering the system-init block-g1-sfm command.
Syntax: system-init block-g1-sfm
After you enter this command, enter the write -memory command and restart the router.
Managing the cooling system
This section provides configuration, management, and monitoring information about router cooling systems.
Configuring the cooling system
Your router is pre-configured with default settings for all cooling system parameters. Although no initial configuration of the cooling
system is necessary, you can change the settings of the following cooling system parameters:
Low and high temperature thresholds for modules and fan speeds
Interval at which the system polls the temperature sensors on the module for a reading
NOTE
Auto control of fan speed is not monitored when cards are in interactive mode. Set fan speed to high to prevent over-temp
condition.
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.