Replacing A Fan Tray; Removing A Fan Tray - Cisco Nexus 9508 Hardware Installation Manual

Replacing or Installing Modules, Fan Trays, and Power Supplies
• For each connected port, the port LED turns on and becomes green or amber.

Replacing a Fan Tray

You can remove a fan tray to either replace it with another fan tray or to replace a fabric module located
behind it.
The switch uses three fan trays but it can operate with two fan trays while you replace one or remove one to
replace one of the fabric modules behind the fan tray. When you remove one fan tray, the other fan trays speed
up their fans to maintain the designed airflow.
Note If you cannot replace a fan tray within three minutes, we recommend that you leave it in the chassis until
you are ready to replace it.
Note If you remove more than one fan tray at a time during operations, the switch allows up to two minutes of
operations before shutting down unless you replace extra missing fan trays within that time. If the switch
senses an over-temperature condition when multiple fan trays are removed, the shutdown can occur in
less than two minutes.
Statement 1034—Backplane Voltage
Warning
Hazardous voltage or energy is present on the backplane when the system is operating. Use caution when
servicing.

Removing a Fan Tray

Remove only one fan tray at a time during switch operations. If you remove more than one fan tray at a time,
the switch will shut down within two minutes unless you replace the extra fan trays that you removed within
that time.
Before You Begin
• You must wear an electrostatic discharge (ESD) wrist strap or other ESD protective device while handling
• Prepare an antistatic surface or packing materials for each module that you remove from the chassis.
Step 1 Open the packaging for the new fan tray and inspect it for damage.
modules.
Cisco Nexus 9508 NX-OS Mode Switch Hardware Installation Guide

Replacing a Fan Tray

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