SUBSYS DD Parameter › Special Considerations When Using SUBSYS › Partitioned Data Sets › Correct JCL
//GOODPDS DD DSN=MY.PDS(MYMEMBER), // DISP=SHR, // DCB=(RECFM=FB,BLKSIZE=4080, // LRECL=80), // SUBSYS=(ZSAM,SHRK,SUPEREXP)