Retrieving an Existing VSAM Data Set

To retrieve an existing VSAM data set, code a DD statement in the form:

   //ddname  DD   DSNAME=dsname,DISP=OLD
   or
   //ddname  DD   DSNAME=dsname,DISP=SHR

If SMS is active, you can pass VSAM data sets within a job. The system replaces PASS with KEEP for permanent VSAM data sets. When you refer to the data set later in the job, the system obtains data set information from the catalog. Without SMS you cannot pass VSAM data sets within a job.