The AUTOGEN command procedure (SYS$UPDATE:AUTOGEN.COM) sets
appropriate values for system parameters and sizes for system
page, swap, and dump files. AUTOGEN runs automatically when you
install or upgrade the operating system.
In addition, you can use AUTOGEN to reset system parameter
values, system file sizes, or both. The new values and file sizes
take effect the next time the system is booted.
HP recommends that you run AUTOGEN on a weekly basis to
adjust system parameters according to your system's work load.
AUTOGEN executes in phases, with each phase performing a separate
task. You control which tasks AUTOGEN performs by specifying a
start phase and an end phase when you invoke AUTOGEN.
You can add commands to the file SYS$SYSTEM:MODPARAMS.DAT to
control the system parameter values and file sizes that AUTOGEN
sets. AUTOGEN uses the information in this file to determine
final values for system parameters or page, swap or dump file
AUTOGEN can improve system performance by using dynamic
information, called feedback, which is gathered from the running
When making major configuration changes, do not use
feedback. Specify nofeedback to assure the use of the
initial AUTOGEN settings.
You control how AUTOGEN uses feedback by specifying an execution
mode when you invoke AUTOGEN. To direct AUTOGEN to use feedback
to make its calculations, run AUTOGEN in feedback mode. After
a period of time, you can execute AUTOGEN in feedback mode to
further refine system parameter settings.