The SETPARAMS phase uses as its input the SETPARAMS.DAT file
    created during the GENPARAMS phase. In this phase, AUTOGEN runs
    SYSMAN to update the system parameter values in the default
    parameter file.

    On Alpha systems, SYS$SYSTEM:ALPHAVMSSYS.PAR is the default
    parameter file. AUTOGEN saves the current system parameters
    in the file SYS$SYSTEM:ALPHAVMSSYS.OLD before updating these
    parameters in SYS$SYSTEM:ALPHAVMSSYS.PAR. The new values are also
    saved in SYS$SYSTEM:AUTOGEN.PAR.

    On I64 systems, SYS$SYSTEM:IA64VMSSYS.PAR is the default
    parameter file. AUTOGEN saves the current system parameters
    in the file SYS$SYSTEM:IA64VMSSYS.OLD before updating these
    parameters in SYS$SYSTEM:IA64VMSSYS.PAR. The new values are
    also saved in SYS$SYSTEM:AUTOGEN.PAR.

    On X86 systems, SYS$SYSTEM:X86_64VMSSYS.PAR is the default
    parameter file. AUTOGEN saves the current system parameters
    in the file SYS$SYSTEM:X86_64VMSSYS.OLD before updating these
    parameters in SYS$SYSTEM:X86_64VMSSYS.PAR. The new values are
    also saved in SYS$SYSTEM:AUTOGEN.PAR.

    The SETPARAMS phase is valid as a start phase and an end phase.
    SETPARAMS requires the SYSPRV and OPER privileges.