Fan Assembly Task Guide

This section addresses the steps for installing or replacing fan assemblies when the chassis is running (hot-swap) or must be powered off (cold-swap). References are provided for more details on removal and installation steps.

Note: Each fan assembly contains three fans for a total of six fans for three installed fan assemblies. The chassis requires five fans out of six functioning fans for operation. If hot-swapping a fan assembly, be sure to have the replacement fan assembly ready to install before removing a faulty fan assembly and replace as soon as possible.

Note: Each fan assembly contains 2 fans for a total of 4 fans for two installed fan assemblies. The chassis requires 3 fans out of 4 functioning fans for operation. If hot-swapping a fan assembly, be sure to have the replacement fan assembly ready to install before removing a faulty fan assembly and replace as soon as possible.

Note: Each fan assembly contains 3 fans for a total of 6 fans for three installed fan assemblies. The chassis requires 5 fans out of 6 functioning fans for operation. If hot-swapping a fan assembly, be sure to have the replacement fan assembly ready to install before removing a faulty fan assembly and replace as soon as possible.

Note: If a fan assembly has failed, do not remove it from the chassis unless an FRU is available for replacement. If the slot is left empty for an extended time period, this could cause chassis air leakage and overheating.

Note: Make sure that captive screws securing fan assemblies to the chassis are tightened. If the screws are not tightened, high pressure from fan operation may unseat the fan from chassis connectors.

Replacing a Fan Assembly (Hot-Swap)

If your chassis is up and running, but a fan assembly has failed, complete the following steps:

Remove fan assembly.
Insert new fan assembly into the empty slot as soon as possible.
Verify that the fan assembly status LED is green.

Replacing a Fan Assembly (Cold-Swap)

If your chassis is up and running, but you want to power down the chassis to replace a failed fan assembly, complete the following steps:

Shut down the system using the sysShutdown command.
Unplug power cords from receptacles on all power supply assemblies.
Remove faulty fan assembly.
Insert new fan assembly.
Plug the power cords into the all power supply assemblies from the power sources to the power chassis on.
Verify that the fan assembly status LEDs are green.