The information below describes the fault cause, action to be taken, and how the fault is cleared.
Fault cause:
The external ambient air temperature falls below -2oC (28.4oF).
Action in response to fault:
The ILOM management interfaces are updated to reflect the fault.
The fault is recorded in the event log.
The CMM notifies all SPs to force the blades to shut down. The hosts have two minutes in which to shut down gracefully; after two minutes the SPs force an immediate shutdown.
The chassis is powered off.
The CMM remains operational as long as the power supplies remain connected to AC power.
Note that the chassis Service Action Required LEDs were already lit when the temperature_low_warn_external_air_temp fault was declared.
Fault clearing:
This external fault is automatically cleared when the ambient temperature rises above -2oC (28.4oF).
Note that the chassis Service Action Required LEDs are not extinguished until the temperature rises above the fault.temperature.low_warn@external/air_temp threshold.