Single Subparameter: You can omit the
parentheses if you code only the subsystem-name. Number
of Subparameters : If needed, you can code up to 254 subsystem-subparameters
on a JES2 system (the length of all parm-statements
cannot exceed about 8 KB on a JES2 system), or up to 1020 bytes
of data on a JES3 system.
Multiple Subparameters:
When the parameter contains more than the subsystem-name, separate
the subparameters by commas and enclose the subparameter list in parentheses.
For example, SUBSYS=(XYZ,1724,DT25).
Positional
Subparameters: If you omit a subparameter that the subsystem
considers positional, code a comma in its place.
Special
Characters: When a subparameter contains special characters,
enclose the subparameter in apostrophes. For example, SUBSYS=(XYZ,1724,'KEY=Y').
Code
each apostrophe that is part of a subparameter as two consecutive
apostrophes. For example, code O'Day as SUBSYS=(XYX,1724,'NAME=O''DAY').
If
you code a symbolic parameter on the SUBSYS parameter, you can code
the symbolic parameter in apostrophes.
Continuation
onto Another Statement: Enclose the subparameter list in only
one set of parentheses. End each statement with a comma after a complete
subparameter. For example: //DS1 DD DSNAME=DATA1,SUBSYS=(XYZ,1724,'KEY=Y',
// DT25,'NAME=O''DAY')
Note: The SUBSYS
parameter can have a null value only when coded on a DD which either:
- Overrides a DD in a procedure
- Is added to a procedure.
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