Maintaining The Fan Tray In Ex9200 Switches - Juniper EX9214 Hardware Manual

EX9214 Switch Hardware Guide

Maintaining the Fan Tray in EX9200 Switches

Purpose
Action
260
For optimum cooling, verify the condition of the fans.
Monitor the status of the fans. A fan tray contains multiple fans that work in unison to
cool the switch components. If one fan fails, the host subsystem adjusts the speed of
the remaining fans to maintain proper cooling. A major alarm is triggered when a fan
fails and a minor alarm and a major alarm are triggered when a fan tray is removed.
To display the status of the cooling system, issue the
command. The output is similar to the following:
user@switch> show chassis environment
Class Item
Temp PEM 0
PEM 1
PEM 2
PEM 3
Routing Engine 0
Routing Engine 0 CPU
Routing Engine 1
Routing Engine 1 CPU
CB 0 Intake
CB 0 Exhaust A
CB 0 Exhaust B
CB 0 ACBC
CB 0 XF A
CB 0 XF B
CB 1 Intake
CB 1 Exhaust A
CB 1 Exhaust B
CB 1 ACBC
CB 1 XF A
CB 1 XF B
FPC 0 Intake
FPC 0 Exhaust A
FPC 0 Exhaust B
FPC 0 LU 0 TCAM TSen
FPC 0 LU 0 TCAM Chip
FPC 0 LU 0 TSen
FPC 0 LU 0 Chip
FPC 0 MQ 0 TSen
FPC 0 MQ 0 Chip
FPC 1 Intake
FPC 1 Exhaust A
FPC 1 Exhaust B
FPC 1 LU 0 TCAM TSen
FPC 1 LU 0 TCAM Chip
FPC 1 LU 0 TSen
FPC 1 LU 0 Chip
FPC 1 MQ 0 TSen
FPC 1 MQ 0 Chip
FPC 2 Intake
FPC 2 Exhaust A
FPC 2 Exhaust B
FPC 2 LU 0 TCAM TSen
FPC 2 LU 0 TCAM Chip
show chassis environment
Status Measurement
OK 30 degrees C / 86 degrees F
OK 35 degrees C / 95 degrees F
Check
Absent
OK 31 degrees C / 87 degrees F
OK 30 degrees C / 86 degrees F
OK 33 degrees C / 91 degrees F
OK 31 degrees C / 87 degrees F
OK 30 degrees C / 86 degrees F
OK 29 degrees C / 84 degrees F
OK 36 degrees C / 96 degrees F
OK 34 degrees C / 93 degrees F
OK 50 degrees C / 122 degrees F
OK 46 degrees C / 114 degrees F
OK 30 degrees C / 86 degrees F
OK 29 degrees C / 84 degrees F
OK 37 degrees C / 98 degrees F
OK 33 degrees C / 91 degrees F
OK 50 degrees C / 122 degrees F
OK 46 degrees C / 114 degrees F
OK 30 degrees C / 86 degrees F
OK 36 degrees C / 96 degrees F
OK 34 degrees C / 93 degrees F
OK 40 degrees C / 104 degrees F
OK 42 degrees C / 107 degrees F
OK 40 degrees C / 104 degrees F
OK 52 degrees C / 125 degrees F
OK 40 degrees C / 104 degrees F
OK 49 degrees C / 120 degrees F
OK 30 degrees C / 86 degrees F
OK 35 degrees C / 95 degrees F
OK 34 degrees C / 93 degrees F
OK 40 degrees C / 104 degrees F
OK 41 degrees C / 105 degrees F
OK 40 degrees C / 104 degrees F
OK 51 degrees C / 123 degrees F
OK 40 degrees C / 104 degrees F
OK 46 degrees C / 114 degrees F
OK 30 degrees C / 86 degrees F
OK 35 degrees C / 95 degrees F
OK 34 degrees C / 93 degrees F
OK 40 degrees C / 104 degrees F
OK 40 degrees C / 104 degrees F
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