Remaining PF interval The PF interval is used to indicate the remaining time until a potential or partial failure escalates to a full failure. PF interval can be tracked in terms of time or a cumulated indicator value, such as cycles or operating hours. See Also Locked If the PF interval is locked, APM does not recalculate the time remaining until a full failure can be expected. The PF interval remains at its current level until it is changed manually. See Also New Select a different PF interval for the failure. See Also Lock the PF interval If you want to prevent APM from recalculating the P-F interval for the failure, select Lock the PF Interval. While it is locked, the P-F interval can be manually changed, but it will not be recalculated by APM. See Also Comment Description of the failure resolution or the reason for cancelling or reopening the failure. See Also