If the status is not reported for a fan tray and the status LED is not lit for that installed fan tray, check to
be sure that there is a fabric module installed behind the fan tray. There must be a functioning fabric
module installed behind that fan tray in order for the fan tray to be powered up.
Note
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide
75
Managing the Switch
Displaying the Status for the Fan Trays