HP OpenVMS Version 8.3 Upgrade and Installation Manual > Chapter 7 After Installing or Upgrading the OpenVMS Operating System

Running AUTOGEN to Set System Parameter Changes

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If you modified MODPARAMS.DAT to enable or modify shadowing parameters (see “Set System Parameters for Volume Shadowing (New Installations Only; Optional)”), or if you removed hardcoded BAP system parameters (see “Tuning BAP System Parameters (Alpha Upgrade Only)”), then run AUTOGEN and reboot the system by performing the following steps. This makes the changes take effect.

  1. Run AUTOGEN by entering the following command:

  2. After AUTOGEN completes, display or print the SYS$SYSTEM:AGEN$PARAMS.REPORT file and review it. This file lists changes being made to SYSGEN parameters or changes that AUTOGEN wanted to make but could not because of a hardcoded or maximum value that was specified in MODPARAMS.DAT.

  3. If other changes need to be made to MODPARAMS.DAT based on a review of the AGEN$PARAMS.REPORT file, make them now and then resume at step 1.

  4. Once you are satisfied with the parameter settings, enter the following AUTOGEN command:


    This command makes the parameter changes permanent so that they are used on subsequent reboots.

  5. Reboot the system by entering the following command: