This OID records the lowest right-outlet temperature seen for the HDD motherboard over the current stats interval. The minimum acts as the counterpart to the max, letting an admin see the full swing of thermal variation at that sensor and judge whether cooling is stable or fluctuating. A technician troubleshooting an intermittent fan issue could watch this minimum drop sharply each time a fan cycles down, confirming the fan, not the disk itself, is the source of the instability.