This read-write value sets, in seconds, how often the sampled variable is measured and compared against the rising/falling thresholds, and cannot be modified while the entry's status is valid(1). An admin must set this interval short enough for deltaValue sampling that the tracked counter can't wrap or overflow by more than 2^31-1 between samples. For example, setting hpnicfprialarmInterval to 60 samples and evaluates the tracked variable once per minute against its configured thresholds.