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Table 18. Chassis status and temperature Information (continued)
This Field...
Boot PROM MAC
Managing the cooling system
This section provides configuration, management, and monitoring information for the
cooling system.
Configuring the cooling system
The device provides default settings for all cooling system parameters. Therefore,
no initial configuration of the cooling system is necessary. If desired, you can
change the settings of the following cooling system parameters:
v Low and high temperature thresholds for modules and fan speeds
v Interval at which the system polls the temperature sensors on the module for a
v Temperate at which the device will shut itself down
v Fan speed
Thermal planes
The B08S and B16S have three thermal planes:
v Thermal Plane 1 (also called Rule 1/3) - This thermal plane includes the
v Thermal Plane 2 (also called Rule 2/3) - This thermal plane includes all of the
v Thermal Plane 3 (also called Rule 3/3) - This thermal plane includes all of the
All thermal planes, along with temperature thresholds, help determine at which
speed the fans should operate. For each thermal plane, you can define separate
temperature thresholds for fan speeds. Each thermal plane can have different
temperature thresholds.
For each thermal plane, the device records the highest temperature based on the
temperature reading of all of the modules in the thermal plane. The system uses
this information and the current configured temperature thresholds to adjust the fan
speed. You can view the temperature of each thermal plane using the show
chassis command.
Fan speed modes
The fans can operate in automatic or manual mode. The default is automatic mode.
This section describes both methods.
Automatic mode: By default, the fans operate in automatic mode, self-adjusting
their speed based on both of the following factors:
v the current temperature of each thermal plane
v the current configured temperature threshold ranges for all five fan speeds
Displays...
The MAC address of the chassis.
reading
temperature sensors on the management module(s) only. Each management
module has two temperature sensors.
temperature sensors on all of the Interface modules. Each Interface module has
one temperature sensor.
temperature sensors on the switch fabric modules. Each switch fabric module
has one temperature sensor.
Chapter 5. Managing the Chassis and Modules
61
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