What action should a worker take if a cabinet in a System + System facility is overheating?

When a cabinet in a System + System facility is overheating, the most immediate and effective action to take is to trip the branch-circuit breaker feeding the cabinet. This action quickly cuts off the power supply to the cabinet, preventing potential damage to the equipment caused by overheating, which could lead to malfunctions or even catastrophic failures.

Tripping the breaker serves as a safety measure, minimizing the risk of fire or other hazards associated with excessive heat. It is crucial to prioritize safety and equipment protection, especially in an environment that often houses sensitive and costly technology.

While installing additional cooling might help resolve the issue over time, it does not address the immediate danger posed by the overheating. Shutting down the UPS temporarily could also lead to disruptions in operations, which is not advisable if the priority is to quickly stop the overheating. Reorganizing the server layout might be beneficial for airflow in the long run but does not provide a quick solution to an active overheating problem. Therefore, the immediate action of tripping the circuit breaker is the most critical step.