//SORTWK01  DD  SPACE=(CYL,(15,5)),UNIT=3390

If you use the checkpoint/restart facility and need to make a deferred restart, you must make the following additions to the previous statement so that the sort work data set is not lost:

DSNAME=name1,DISP=(NEW,DELETE,CATLG)

Thus the same SORTWKdd DD statement for a deferred restart would be:

//SORTWK01  DD  DSNAME=name1,UNIT=3390,SPACE=(CYL,(15,5)),
//              DISP=(NEW,DELETE,CATLG)

The following is an example of SORTWKdd DD statements using three tape devices.