Cisco Nexus 9508 - Displaying the Status for the Fan Trays

Because temperatures can change over time, we recommend that you replace the fan tray within three
minutes.
•
If you remove more than one fan tray at a time, the switch can operate up to three minutes before shutting
down. To prevent a shutdown, remove only one fan tray at a time.
When a fan fails or when you remove a fan tray, the remaining operating fans speed up to compensate for
the loss of fans. This process can increase the noise made by the fan trays until you replace the missing
fan tray or replace the defective fan tray.
Note
When replacing a failed fan tray in a running system, be sure to promptly replace the fan tray.Note
If one or more fans fail within a fan tray, the Fan Status LED turns red. A fan failure could lead to
temperature alarms if not corrected immediately.
Tip
The fan status is continuously monitored by the software. In case of a fan failure, the following actions occur:
•
System messages are displayed.
•
Call Home alerts are sent (if configured).
•
SNMP notifications are sent (if configured).
To display the fan module statuses, see Displaying the Status for the Fan Trays, on page 74.
The fan trays fill slots FAN 1, FAN 2, and FAN 3 in the chassis.Note
Displaying the Status for the Fan Trays
You can display the status of the fan trays by using the show environment fan command.
switch# show environment fan
Fan:
------------------------------------------------------
Fan Model Hw Status
------------------------------------------------------
Fan1(sys_fan1) N9K-C9508-FAN 0.5020 Ok
Fan2(sys_fan2) N9K-C9508-FAN 0.5020 Ok
Fan3(sys_fan3) N9K-C9508-FAN 0.5010 Ok
Fan_in_PS1 -- -- Ok
Fan_in_PS2 -- -- None
Fan_in_PS3 -- -- None
Fan_in_PS4 -- -- None
Fan_in_PS5 -- -- None
Fan_in_PS6 -- -- None
Fan_in_PS7 -- -- None
Fan_in_PS8 -- -- None
Fan Zone Speed: Zone 1: 0x0
Fan Air Filter : NotSupported
switch#
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
74
Managing the Switch
Displaying the Status for the Fan Trays