Required DCB Parameters

If you provide a DCB, you must code the following parameters:

DSORG=PS or PO (BSAM or BPAM data set organization)
MACRF=W (WRITE macro instruction)
DDNAME= name of DD statement for checkpoint data set.

To control space allocation you can provide DSORG also on the DD statement or in the data class definition. Optional DCB macro and DD statement parameters are in DCB Options