Fan mode behavior
In nonredundant fan mode, a fan failure or a missing fan causes:
The system Health LED to flash amber.
The operating system to orderly shutdown.
In redundant fan mode:
A fan rotor failure will switch the system to nonredundant fan mode.
This change is indicated by the Health LED flashing amber. The system continues to operate normally in this mode.
A second fan rotor failure or a missing fan causes the operating system to orderly shutdown.