Setting up dynamic allocation options

During application program execution, AR/CTL must dynamically allocate the checkpoint data set from a dynamic allocation record (ddname ARCCHKP) in the REGISET. AR/CTL can dynamically allocate the trace data set from a dynamic allocation record named ARCDLTRC. If the program uses local VSAM access services, AR/CTL can dynamically allocate the VSAM dynamic backout log. AR/CTL can also dynamically allocate the data set/program options libraries (ddname ARC), the AR/CTL external subsystem definition library (ddname ARCSSMLB), and the AR/CTL history data set (ddname ARCHIST) if you provide dynamic allocation records for them.

At execution, AR/CTL uses the dynamic allocation information in the most specific record that applies to the job step; the dynamic allocation information is not merged.

To create a new dynamic allocation record for ddname ARCCHKP

Note

For details about this task, see Reference.

  1. Access the APPLICATION RESTART Control primary menu, and select option 9 (Dynamic allocation options).
  2. On the Select Dynamic Allocation Record DDname panel, select option 1 (ARCCHKP).
  3. On the Limit List of Records panel, type or verify asterisks in all fields, and press Enter.
  4. On the List Records panel, enter the ADD command.
  5. On the Add Record panel, type the qualifiers to use in the record key, and press Enter.
  6. For each option field on the Skeleton Options panel, you can type one of the values listed to the right of the option.Or you can type ? to display the help panel with more information about the option; on the help panel, you can type the option value you want to use.

  7. Press Enter to validate the information.

    Tip

    To continue to the next page, enter the DOWN command. Enter the END command to save the record and exit from the panel.

 

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