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MODBIT — Modification (change) bit (on/off)

For all processing of non-VSAM data sets, ICF VSAM clusters, and reporting on VSAM components with SCAN REALVOLS, REPORT COMPONENTS, the value of MODBIT is set to YES/TRUE/ON if the change bit DS1IND02 is set in the Format-1 DSCB for each data set or component. This is also true for the MODIFIED field.

Note: Certain applications bypass normal OPEN processing. Data sets updated by these applications will not have their change bits set. These data sets will never be selected by SEL CRI=(MODBIT,EQ,YES). To select all potentially modified data sets, you must specifically select these data sets.