PD - Size of Page Data Set

This Natural profile and session parameter specifies the maximum number of pages (screens) which can be stored at the same time in the Natural system file (FUSER) with the screen-paging utility.

Within a Natural session, the profile parameter PD can be overridden by the session parameter PD.

Possible settings 0 or 1 - 255 Maximum number of pages (screens).
Default setting 50  
Dynamic specification yes  
Specification within session yes  
Applicable statements SET GLOBALS  
Applicable command GLOBALS  


  1. If the number of stored screens exceeds the setting of PD, wrap-around technique is used for the system file, which means that the oldest page is overwritten.
  2. For further information on the screen page utility, see the terminal commands %E, %I, %O, %P and %S.