This read-create enumerated value sets how the sampled variable's value is calculated for threshold comparison: absoluteValue(1) compares the raw sampled value directly, deltaValue(2) compares the difference from the previous sample, and it defaults to absoluteValue; it cannot be modified once the entry's status is valid. Admins choose deltaValue for ever-increasing counters like error or packet counts, and absoluteValue for gauges like CPU or memory utilization. For example, an admin alarming on interface error-counter growth would set h3cRmonExtAlarmSampleType to deltaValue(2) so the alarm reacts to the rate of new errors rather than the cumulative total.