Juniper M Series User Manual

Table 91: Cooling System Alarm Messages (continued)
CLI Long VersionLCD Short VersionRouting Platform
Red ALARM -
Failure
Fan FailureTX Matrix and TX
Matrix Plus
RED ALARM Too many fans missing or
failing
Fans Missing
Red ALARM - fan-name
fan-name
Fan Removed
RED ALARM Temperature HotTemperature Hot
RED ALARM Temperature sensor failureSensor Failure
YELLOW ALARM Temperature warmTemperature Warm
Display Cooling System Error Messages in the System Log File
Purpose To determine the details of the cooling system error messages in the system log file.
Action To view cooling system error messages in the system log file, use the following CLI
command:
user@host> show log messages| match fan
Sample Output
user@host> show log messages | match fan
Apr 8 14:00:15 myrouter scb CM: ALARM SET: (Major) Power Supply A fan failed
Apr 8 14:00:15 myrouter alarmd[584]: Alarm cleared: Pwr supply color=RED,
class=CHASSIS, myrouter=Power Supply A fan failed
Apr 8 14:00:18 myrouter scb CM: ALARM CLEAR: Power Supply A fan failed
Apr 8 14:00:21 myrouter alarmd[584]: Alarm set: Pwr supply color=RED,
class=CHASSIS, reason=Power Supply A fan failed
Apr 8 14:00:23 myrouter scb CM: ALARM SET: (Major) Rear left fan stopped spinning
Apr 8 14:05:16 myrouter alarmd[584]: Alarm set: Fan color=RED, class=CHASSIS,
reason=Rear left fan stopped spinning
Meaning The messages system log file records the time when the failure or event occurred, the
severity level, a code, and a message description. Use the show log messages | match fan
command to view only fan error messages. Use this information to diagnose a cooling
system problem and to let the Juniper Networks Technical Assistance Center (JTAC)
know what error messages were generated and the router events prior to the problem.
For more information about system log messages, see the Junos OS System Log Messages
Reference .
Related
Documentation
Checklist for Monitoring the Cooling System on page 317•
Copyright © 2012, Juniper Networks, Inc.348
M Series and T Series Routers Monitoring and Troubleshooting Guide

Juniper M Series Specifications

General

Brand	Juniper
Model	M Series
Category	Network Router
Language	English