Setting the JCL generation data group (GDG) options

To set the JCL options for generation data groups

1. Use the following menu selections to display the JCL Generation Generation Data Group Options Update panel (see the figure below):

   From this menu	Select this item and press Enter
   DASD MANAGER PLUS Main Menu	User Options
   User Options	JCL generation options
   JCL Generation Update - Main Menu	Generation Data Group Options (GDGDs)

   JCL Generation Generation Data Group Options Update panel

   ----------- JCL GENERATION GENERATION DATA GROUP OPTIONS UPDATE --------------
   COMMAND ===>                                                                  
                                                                                 
   Type data and press Enter.
                                                                                 
      Define GDG base at JCL generation?. . N          (Y/N)
      Specify NSCR on GDG definition?. . .  N          (Y/N)
      Number of primary copy GDG entries. . 10         (1-255)
      Number of recovery copy GDG entries . 10         (1-255)
      Type GDG Model data set below:                                               
      . . SYS1.MODEL    
   NOTE: GDGs only apply to copy data sets.

2. In the Define GDG base at JCL generation? field, type Y or N to specify whether JCL Generation creates the base of the GDG.

   Important

   JCL Generation cannot create the base of the GDG if you use IBM COPY to generate image copies for implicitly created objects.

3. In the Specify NSCR on GDG definition? field, type Y if the base of a GDG is defined in the IDCAMS DEFINE command as EMPTY (NSCR), or N if the base is defined as SCRATCH (SCR):
   • SCR (the default) indicates to scratch (delete) the generation data set when it is uncataloged.
   • NSCR indicates to uncatalog the generation data set when the maximum number of generation data sets to keep is reached.
4. In the Number of primary copy GDG entries field, type the maximum number of generation data sets to keep for primary copies.
5. In the Number of recovery copy GDG entries field, type the maximum number of generation data sets to keep for recovery copies.

6. At Type GDG Model data set below, type the name of the GDG model data set.

   Important

   If you type NONE, the DCB=model.dataSetName is omitted from the JCL for the data set.

7. Press END to save your changes and return to the DASD MANAGER PLUS Main Menu.