Clearing the NoDup(CICSFAST(…)) recording area
Under CICS®, Fault Analyzer maintains a history of recent abends that it has processed, called the FND (fast-no-dup) area. This area is used in conjunction with the NoDup(CICSFAST(…)) option. From the CFA transaction display, press PF5 to access the history display. PF5 can then be used to clear this area, which means that no previous abends are used in subsequent FAST duplicate determination. You are prompted to press PF5 again to confirm that you want to clear the FND area.