Run the following zap to change the default Subsystem name. In this sample, the name is changed from IBIS to ERIC.

//*** Your JOB card
//******************************************************************
//** EXECUTE ZAP TO CHANGE THE NAME OF THE SUBSYSTEM               *
//******************************************************************
//STEP01   EXEC PGM=AMASPZAP,REGION=4M,DYNAMNBR=300,PARM=IGNIDRFULL 
//SYSLIB   DD   DSN=hlq.your_copy_of_the_library_containing_the_subsys_modules,DISP=SHR                
//SYSPRINT DD   SYSOUT=*                                            
//* CHANGE SUBSYSTEM NAME FROM IBIS TO ERIC                         
//SYSIN    DD   *                                                   
 NAME  SUBSYSI SUBSYSN                                              
 VER   0000  C9C2C9E2                                               
 REP   0000  C5D9C9C3                                               
//

In your SU startup JCL, provide the new subsystem name on the EXEC card.

//GOSINK1 EXEC PGM=HLISNK,PARM=' STAT ENVAR(IBIS=ERIC)',REGION=32M