Maintaining The Fan Tray On The Srx1400 Services Gateway - Juniper SRX1400 Hardware Manual

Maintaining the Fan Tray on the SRX1400 Services Gateway

Related
Documentation
Copyright © 2011, Juniper Networks, Inc.
Chapter 11: Maintaining the SRX1400 Services Gateway Hardware Components
The fan tray contains two fans that work in unison to cool the services gateway
components. If one fan fails, the host subsystem adjusts the speed of the remaining fan
to maintain proper cooling. A red alarm is triggered when a fan fails, and a yellow alarm
and red alarm is triggered when a fan tray is removed.
NOTE: The fan tray supports online insertion and removal. We recommend
that you reinstall the fan tray within three minutes; otherwise, the services
gateway temperature exceeds the maximum recommended room
temperature and the device shuts down automatically in 4 minutes.
If one fan fails, you must replace the failed fan immediately. If the remaining
fan also fails, then all the components in the device go offline automatically
(when both fans fail).
To display the status of the cooling system, use the
The output is similar to the following:
user@host> show chassis environment
Class Item
Temp PEM 0
PEM 1
Routing Engine 0
Routing Engine 1
CB 0 Intake
CB 0 Exhaust A
CB 0 Mezz
FPC 0 Intake
FPC 0 Exhaust A
FPC 1 Intake
FPC 1 Exhaust A
FPC 1 XLR
FPC 2 Intake
FPC 2 Exhaust A
FPC 3 Intake
FPC 3 Exhaust A
Fans Fan 1
Fan 2
Required Tools and Parts for Maintaining the SRX1400 Services Gateway Hardware
Components on page 95
Routine Maintenance Procedures for the SRX1400 Services Gateway on page 96
Maintaining the Air Filter on the SRX1400 Services Gateway on page 96
show chassis environment
Status Measurement
OK
Absent
OK
Absent
OK 34 degrees C / 93 degrees F
OK 41 degrees C / 105 degrees F
OK 34 degrees C / 93 degrees F
OK 42 degrees C / 107 degrees F
OK 44 degrees C / 111 degrees F
OK 34 degrees C / 93 degrees F
OK 43 degrees C / 109 degrees F
OK 52 degrees C / 125 degrees F
OK 32 degrees C / 89 degrees F
OK 41 degrees C / 105 degrees F
OK 51 degrees C / 123 degrees F
OK 55 degrees C / 131 degrees F
OK Spinning at normal speed
OK Spinning at normal speed
command.
97