The FILSZ parameter specifies the actual (FILSZ=n) or estimated (FILSZ=En) decimal number of records to be sorted. This number should reflect any changes produced by INCLUDE/OMIT, E14 and/or E15, SKIPREC and STOPAFT processing.
If FILSZ=n is specified, MFX will terminate unless exactly n records are processed.
FILSZ can also be specified as a PARM option on the EXEC statement. If this option is specified both on the SORT control statement and as a PARM option, the PARM specification takes precedence.