1. Exadata Server X11M Service Manual
  2. Servicing Fan Modules
  3. Remove a Fan Module

Remove a Fan Module

You do not have to power off the server to service fan modules.

Caution:

When removing and replacing a fan module in the Exadata Server X11M, you must complete the entire procedure within 60 seconds to maintain adequate cooling in the system. Remove and replace only one fan module at a time. Ensure that you have obtained the replacement fan module and that is it is ready for installation before starting the replacement procedure.

Each fan module contains one fan, with two fan motors per fan. The two fan motors provide separate tachometer signals so that the fan module reports two tach signals to Oracle ILOM. Even if only one fan motor is faulted within the fan module, the Oracle ILOM service processor detects that two fan motors have failed to spin while the fan module is removed. If the fan module is not replaced within 60 seconds of removal, Oracle ILOM will take the protective action to shut down the system to prevent thermal damage to the system.

If the cover is not installed within 60 seconds, the system may shutdown due to over-temperature or a PCIe card may overheat, potentially damaging it.

  1. Extend the server to the maintenance position.
  2. To access the fan modules, remove the server top cover.
  3. Identify the faulty fan module.

    Each fan module has a fan service action required status indicator (LED) that is located next to the module. If the LED is amber, the fan has failed. The location of the fan status LED is shown in the following figure.

    Figure showing the location of fan modules and associated status indicators.
    LED Color and State Meaning

    Amber – The fan module is faulty. The front Top Fan LED and the front and back panel Fault-Service Required LEDs are also lit if the system detects a fan module fault.
  4. Using your forefinger and thumb, lift the fan module straight up and out of the chassis and set it aside on an antistatic mat.
    Figure showing how to remove a fan module.
  5. Consider your next step:

    • If you removed the fan assembly as part of another procedure, return to that procedure.

    • Otherwise, continue to Install a Fan Module.