This field names the auto-response script to execute the moment fan speed drops to a dangerously slow level that risks inadequate cooling of the chassis, giving the admin a chance to script an automated reaction to a developing thermal risk before it escalates into an actual PSU or entity failure. An admin would typically point this at a script that, for example, forces non-critical entities into a lower-power or out-of-service state to reduce heat load while a technician is dispatched to replace the fan. For example, configuring this script to automatically send an SMS to on-call facilities staff the instant fan speed becomes dangerous buys critical minutes before heat buildup starts tripping other hardware alarms.