The Start PDE/DBS step is where you can choose to start the PDE/DBS. If you are upgrading versions of Teradata that require a conversion, you cannot make a choice here. During an upgrade, the PDE must be started prior to running the next step, DBS Conversion.
If you choose to start the PDE/DBS and it was already running, PUT does not restart it. PUT only starts a DBS that is in a DOWN or NULL state.
If PDE is not started at this point, changes to settings in control.gdo, dbscontrol.gdo, and tdlocaledef.txt resulting from this run may not be properly documented in the control_settings_changes report generated at the Finished! step.