Loading huge data into the Mainframe data through the load utility

//LOADUTLY JOB (acct#),’LOAD UTLTY’,CLASS=0,MSGCLASS=J
//*LOADING HUGE DATA INTO THE MF DATABASE USING
//* THE LOAD UTILITY
//STEP EXEC PGM=loadutility,REGION=0M
// PARM=(database alias,’load module’,&RES,,message paramteres)),
//*
//STEPLIB DD DSN=systemlib.dsn,
// DISP=SHR
// DD DSN=databaselib.dsn,
// DISP=SHR
// DD DSN=Linklib.dsn,
// DISP=SHR
//*
//OUTPUT DD DSN=output.dsn,
// DISP=(NEW,CATLG,CATLG)
//SYSUDUMP DD SYSOUT=*
//SYSOUT DD SYSOUT=*
//*
//INPUT DD DSN=input.dsn,
// DISP=SHR
//*
//REJECT DD DSN=reject.dsn,
// DISP=(NEW,CATLG,CATLG)
//*
//ERROR DD DSN=error.dsn,
// DISP=(NEW,CATLG,CATLG)
//*
//SYSIN DD *