DD DSORG Parameter

Note! DSORG parameter is required only when we are creating a dataset.

The DSORG parameter specifies the organization of the dataset. The value of this parameter specifies how the data in the dataset is arranged and accessed.

Syntax -

DSORG=PS|PO|DA

PS	specifies the dataset organization is sequential.
PO	specifies the dataset organization is partitioned (PDS).
DA	specifies the dataset organization is direct access.

Default and overrides -

The system uses an installation-defined default if the DSORG parameter is not coded.

Examples -

Scenario1 - Define PDS.

//NEWPDS   DD DSN=MTH.DATA.PSFILE,
//            DISP=(NEW,CATLG,DELETE),
//            UNIT=SYSDA,
//            SPACE=(TRK,(3,2,2),RLSE),
//            DCB=(DSORG=PO,RECFM=FB,LRECL=80,BLKSIZE=1600)

Scenario2 - Define a PS.

//NEWPS    DD DSN=MTH.DATA.PS,
//            DISP=(NEW,CATLG,DELETE),
//            UNIT=SYSDA,
//            SPACE=(TRK,(3,2),RLSE),
//            DCB=(DSORG=PS,RECFM=FB,LRECL=80,BLKSIZE=800)

Scenario3 - Define a DA.

//NEWPDS   DD DSN=MTH.DATA.PDS,
//            DISP=(NEW,CATLG,DELETE),
//            UNIT=SYSDA,
//            SPACE=(TRK,(3,2,2),RLSE),
//            DCB=(DSORG=DA,RECFM=FB,LRECL=80,BLKSIZE=4096)