When GVMAP maps a tape created by CA-FAVER2, VSAM files will be mapped identically to their MVS counterparts, but sequential files will be mapped quite differently. Using PARM=PRINT or PARM=PUNCH has traditionally been used to generate the IDCAMS control statements required to allocate the data sets found on the tape. Sequential data set allocations are generated as TSO ALLOCATE commands with all of the appropriate parameters required to allocate the sequential file correctly. Since the z/OS version of IDCAMS can process ALLOCATE commands, these are included in the output mixed in with the VSAM allocations.
If the system where GVMAP executes is not at the z/OS level, the commands are written out as IDCAMS comments. That is, they are enclosed with a "/*" on the left and a "*/" on the right. The entire PARM=PUNCH output can be used as input to IDCAMS with no ill effect. Then, the ALLOCATE commands can be extracted and input to IKJEFT01, the TSO batch command processor.
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