How to find Proclib concatenation in z/OS
The easy way of Proclib concatenation in z/OS is to use the command $dproclib in master console (or in SDSF prefixed with /). The response is something like this for ADCD: RESPONSE=S0W1 $HASP319 PROCLIB(PROC00) $HASP319 PROCLIB(PROC00) STATIC LIBRARY, $HASP319 DD(1)=(DSNAME=USER.Z24C.PROCLIB, $HASP319 VOLSER=C4CFG1,UNIT=SYSALLDA), $HASP319 DD(2)=(DSNAME=FEU.Z24C.PROCLIB, $HASP319 VOLSER=C4CFG1,UNIT=SYSALLDA), $HASP319 DD(3)=(DSNAME=ADCD.Z24C.PROCLIB, $HASP319 VOLSER=C4SYS1,UNIT=SYSALLDA), $HASP319 DD(4)=(DSNAME=SYS1.PROCLIB, $HASP319 VOLSER=C4RES1,UNIT=SYSALLDA) Documentation and links Display a PROCLIB concatenation - https://www.ibm.com/docs/en/zos/2.3.0?topic=section-d-proclibxxxxxxxx-display-proclib-concatenation