Brocade Communications Systems MLX Series Hardware Installation Guide

240 Brocade MLX Series and NetIron XMR Hardware Installation Guide
53-1003821-01
Managing the cooling system
6
When syslog messages display a change in fan speed, you can identify which sensors triggered the
change by checking show chassis and show fan-threshold command output and looking for
sensors with temperatures near threshold boundaries.Table 39 lists the associations between the
show chassis, show fan-threshold, and fan-threshold commands.
NOTE
A “thermal block” refers to the group of high and low thresholds for all fan speed levels.
TABLE 38 Temperature threshold information for modules and fan speeds
This field... Displays...
Thermal Sensor Control Block
(THERMAL_SENSOR_TEST_RULE_<
module>)
The temperature threshold information for the various modules. The
<module> parameter indicates the following:
• MP – The active management module
• STANDBY_MP – The standby management module
• SNM – The switch fabric module
• LP – An interface module
Fan Speed Low or Med or Med-Hi or
Hi
The current setting of the low and high temperature thresholds for the low,
medium, medium-high, and high fan speeds.
NOTE: As indicated in Table 37 on page 236, the low fan speed for each
module does not have a default low temperature threshold value,
nor can you configure this value. The “-1” value that appears in the
Fan Speed Low field for each module is a Brocade internal value
only.
State = 0 (FAN_STATE_LOW) For Brocade internal use only.
max_ts_shut_off_count For Brocade internal use only.
shut_off_count = 0 0 0 0 0 0 0 0 For Brocade internal use only.
TABLE 39 Associations between show chassis, show fan threshold, and fan-threshold commands
show chassis command output
(sensors)
show fan-threshold command output
(thermal block)
fan-threshold command
configuration
MP, SFM, and hSFM Modules
Active Management 1st reading THERMAL_SENSOR_TEST_RULE_MP fan-threshold mp
Active Management 2nd reading THERMAL_SENSOR_TEST_RULE_MP_CPU fan-threshold mp-cpu
Standby Management 1st
reading
THERMAL_SENSOR_TEST_RULE_STANDBY_MP fan-threshold mp
Standby Management 2nd
reading
THERMAL_SENSOR_TEST_RULE_STANDBY_MP
_CPU
fan-threshold mp-cpu
SFM FE1 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
SFM FE2 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
SFM FE3 reading THERMAL_SENSOR_TEST_RULE_SNM fan-threshold switch-fabric
hSFM FE1 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
hSFM FE2 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
hSFM FE3 reading THERMAL_SENSOR_TEST_RULE_SNM_G2 fan-threshold switch-fabric-g2
LP Modules (1 or 2 Traffic Managers)
LP Sensor 1 reading (TM 0) THERMAL_SENSOR_TEST_RULE_LP fan-threshold lp

Brocade Communications Systems MLX Series Specifications

General

Brand	Brocade Communications Systems
Model	MLX Series
Category	Network Router
Language	English