Sets the permanent exclusion list to be used when configuring
    devices.

    You can use this command to permanently specify device
    autoconfiguration to exclude Fibre Channel port driver devices
    (FG) and any SCSI port driver devices (PK) at each system boot.
    (To specify permanently the exclusion or inclusion of devices for
    the duration of a manual configuration command, use the /EXCLUDE
    or /SELECT qualifier with the SYSMAN IO AUTOCONFIGURE command.)

    You cannot use the SYSMAN IO SET EXCLUDE command to exclude any
    of the following device types:

    o  SCSI class-driver devices (DK, MK, GK) whose names include a
       port allocation class or an HSZ allocation class

    o  Fibre Channel class-driver devices (PG, DG, GG)

    This restriction also applies to SCSI devices on OpenVMS Alpha
    Version 7.1 systems, if the SCSI device names include a port
    allocation class.