This read-write integer (0-200) establishes the early-warning threshold for temperature sensor 2, causing cpqCmcStatusTemp2 to switch to warning(3) once exceeded. It gives an administrator a way to get advance notice about a second monitored zone of the rack before it reaches the more serious overMax level set by cpqCmcThresholdMaxTemp2. For example, an admin could set this a few degrees below the sensor-2 max threshold so a gradually rising rear-of-rack temperature is flagged early enough to investigate airflow before hardware is at risk.