How to Allocating a Multi-volume Data Sets in JCL

Allocating a multi-volume data set

Example 1

//CUSTMAST DD   DSNAME=MMA1.CUSTOMER.MASTER,DISP=(NEW,KEEP),

//             UNIT=SYSDA,VOL=SER=(MVS300,MVS301,MVS302),

//             SPACE=(CYL,(400,200))

Allocates a multi-volume uncataloged data set that uses DASD volumes MVS300, MVS301, and MVS302.

Example 2

//CUSTMAST DD   DSNAME=MMA1.CUSTOMER.MASTER,DISP=(NEW,CATLG),

//             UNIT=(SYSDA,3),SPACE=(CYL,(400,200))

Allocates a multi-volume cataloged data set that uses three DASD volumes chosen by the system.