Referring to a Cataloged Data Set

You do not need to create a model DSCB if you can refer to a cataloged data set whose attributes are identical to those you desire. You can refer to the cataloged data set's DCB attributes by referring to its DCB or to the DD statement that allocated it.

To refer to a cataloged data set for the use of its attributes, you can specify one of the following on the DD statement that creates and catalogs your generation:

DCB=(dsname), where dsname is the name of the cataloged data set.
LIKE=dsname, where dsname is the name of the cataloged data set.
REFDD=ddname, where ddname is the name of a DD statement that allocated the cataloged data set.