A PIP data area (PDA) is created for each prestart job when the job is started.
The object sub-type of the PDA is different than a regular data area. The PDA can only be referred to by the special value name *PDA. The size of the PDA is 2000 bytes but the number of parameters contained in it is not restricted.
The RTVDTAARA, CHGDTAARA, and DSPDTAARA CL commands and the RTVDTAARA and CHGDTAARA macro instructions support the special value *PDA for the data area name parameter.