Retrieving an existing VSAM data set - without SMS

To request a cataloged VSAM data set, code a DD statement in the form: 
   //ddname DD  DSNAME=dsname,DISP=OLD
   //ddname DD  DSNAME=dsname,DISP=SHR
Note: VSAM data sets cannot be passed within a job.
Parent topic: VSAM data sets - without SMS