Replacing A Fabric Module; Removing A Fabric Module - Cisco Nexus 9508 Hardware Installation Manual

Replacing or Installing Modules, Fan Trays, and Power Supplies

Replacing a Fabric Module

The switch uses three to six fabric modules depending on the requirements of the line cards that are installed
in the chassis.
Note
Note
The fabric modules must be installed in specific slots as follows (installing fabric modules in other slots can
cause a module mismatch condition):
• For three modules, they must be in slots FM 2, FM 4, and FM 6.
• For four modules, they must be in slots FM2, FM 3, FM 4, and FM 6.
• For five modules, they must be in Slots FM 2, FM 3, FM 4, FM 5, and FM 6.
• For six modules, they are in slots FM 1, FM 2, FM 3, FM 4, FM 5, and FM 6
You can replace a fabric module while other fabric modules are operating by removing the fan tray in front
of the fabric module. Remove the fabric module, then install the new fabric module, and replace the fan tray
over the installed fabric module.
To maintain the designed airflow while you remove the fan tray, the fans in the other fan trays increase their
speed. During operations, we recommend that you remove only one fan tray at a time and reinstall that fan
tray within three minutes. This action avoids the possibility of having the switch overheat and shut down.
Caution

Removing a Fabric Module

Before you begin
• Wear an electrostatic discharge (ESD) wrist strap or other ESD protective device while handling modules.
• Prepare an antistatic surface or packing materials for each module that you remove from the chassis.
• Remove the fan tray that covers the fabric module that you are removing.
Do not mix fabric module types in the same switch.
If you are downgrading the operating system, you must ensure both of the following:
• The new version of software supports the fabric modules and line cards, which are installed in the
same switch.
• The fabric modules that are installed in the switch, support the line cards that are installed in the
same switch.
If you remove more than one fan tray at a time, the switch shuts down if you do not reinstall the extra
missing fan trays within two minutes. The shutdown can occur earlier if the switch over heats.
Cisco Nexus 9508 ACI-Mode Switch Hardware Installation Guide

Replacing a Fabric Module

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