Valid for x86-64 systems only.

    Updates the list of alternate devices where system crash dumps
    can be written.

    This command does not create a dump file on any specified
    device; the recommended method is to use the CREATE command in
    the SYSGEN utility. If a specified device is not mounted or
    no dump file is found there, a warning will be output.

    The updated list of devices is saved in system memory for
    immediate use, and in the file SYS$MANAGER:SYS$DUMP_CONFIG.DAT
    for subsequent system reboots.

    Format

      SET DUMP_OPTIONS /DEVICE=(device[,...]) [/LOG]

1  –  Qualifier

1.1    /DEVICE

       /DEVICE=(device[,...])
       /NODEVICE

    Specify the device(s) containing a system dump file SYSDUMP.DMP
    in the directory [SYSn.SYSEXE]. You can omit the parentheses when
    you specify only a single device. Only non-shadowed devices that
    are directly connected to the system can be specified (that is,
    neither MSCP-served nor shadow set units can be used).

    The previous contents of the list are replaced by the specified
    list. Use /NODEVICE to clear the list of alternate devices and
    only allow dumps to be written to the dump file on the system
    disk.

1.2    /LOG

       /LOG

    Outputs informational messages

2  –  Examples

    1.$ SET DUMP_OPTIONS /DEVICE=DKA100:

    2.$ SET DUMP_OPTIONS /DEVICE=$77$DKA200:/LOG
      %SET-I-FILEUPDATED, SYS$MANAGER:SYS$DUMP_CONFIG.DAT updated
      %SET-I-MEMUPDATED, memory settings updated

    3.$ SET DUMP_OPTIONS /DEVICE=($77$DKA200:,DKA100:)

    In this example, DKA100: will only be used as a system dump
    device if $77$DKA200: is not accessible at the time of the
    system crash.