JCL DD Statement for a Volume

To identify and allocate a volume, include:

Volume serial number
Disposition
Unit

This DD statement identifies and allocates volume VSER01:

//VOLDD    DD   VOL=SER=VSER01,UNIT=3380,DISP=OLD

For information on concatenated DD statements, see the FILE parameter descriptions in Functional Command Syntax. Examples using concatenated DD statements follow the description of the REPRO command that begins on REPRO. For additional information about the various types of concatenated DD statements, see the section on special DD statements in z/OS MVS JCL Reference.