Lenovo RackSwitch G8052, Installation Manual

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RackSwitch G8052 Installation Guide
Removing and Replacing a Fan Module
The rear panel of the G8052 has four bays for hot-swap fan modules. Four active
fan modules are required for redundancy.
With four fan modules, if one fan fails, the switch will send an error message and
continue operation. You can then replace the failed fan without powering off the
switch or disrupting switch functions. If a second fan fails, the switch will send
another error message, write a log message to flash memory, and shut down to
prevent overheating.
For proper airflow when operating the switch with three fan modules, the empty fan
bay must be closed with a blank fan filler plate.
Removing the Fan Module
To remove a hot-swap fan module, complete the following steps:
1. Loosen the retainer screw.
2. Grasp the extractor handle and gently pull the fan module from the slot.
Attention:
If the inlet air temperature is above 35°C (95°F) while the switch is in
operation, replace the fan module within five minutes to avoid overheating the
switch.
To return the component to customer service for replacement, see Appendix A,
“Getting Help and Technical Assistance ” on page 75 to help you gather all the
required information that is necessary to return a component. After you remove the
component, securely pack the component for shipping.
Retainer Screw