Bug ID 15725346
After some fan module failures, you can replace the fan module without shutting down the server. However, once you remove the failed fan module, you must insert the replacement fan module within 60 seconds. Otherwise the system shuts down with a fan column fail fault.
Other more severe fan module failures cause the system to automatically shut down and register a fan column fail fault, which occurs when both fans in a counter-rotating pair go below a minimum speed.
fault.chassis.device.fan.column-fail
Affected Hardware:
Sun Fire X4170 M2 Server
Sun Fire X4270 M2 Server
If the system shuts down due to a fan column fail fault, you must clear the fault before you can restart the system.
See your server service manual for the fan module replacement procedure.
For procedures to clear the fault, refer to the Oracle ILOM 3.2 Documentation Collection at https://docs.oracle.com/cd/E37444_01/index.html.