- Code the DUMMY parameter by itself or follow it with all the parameters
you would normally code when defining a data set, except the DDNAME
parameter.
- Code the DCB parameter, if needed. If the program does not supply
all the data control block information, make sure that the DCB parameter
supplies the missing information.
- Code AMP=AMORG if you are using VSAM's ISAM interface.
- If you code either VOLUME=REF=dsname or DCB=dsname with DUMMY,
the referenced dsname must be cataloged or passed; otherwise, the
job is terminated.
- Because no I/O is performed to the dummy data set, the system
checks the SPACE and DISP parameters, if coded, for syntax, then ignores
them. If you code UNIT with DUMMY, the system will ignore it if the
specified unit name is syntactically correct and defined to the system.
Otherwise the system terminates the job.
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