SYSMAN> IO SHOW BUS

  _Bus__________Node_TR#__Name____________Base CSR__________
  LSB           0    1    EV3 4MB        FFFFFFFF86FA0000
  LSB           6    1    MEM            FFFFFFFF86FC4000
  LSB           7    1    MEM            FFFFFFFF86FCA000
  LSB           8    1    IOP            FFFFFFFF86FD0000
  XZA XMI-SCSI  0    3    XZA-SCSI       0000008001880000
  XZA XMI-SCSI  1    3    XZA-SCSI       0000008001880000
  XZA XMI-SCSI  0    4    XZA-SCSI       0000008001900000
  XZA XMI-SCSI  1    4    XZA-SCSI       0000008001900000
  XMI           4    2    LAMB           0000008001A00000
  DEMNA         0    5    Generic XMI    0000008001E80000
  DEMNA         0    6    Generic XMI    0000008001F00000

      This example is from a DEC 7000 Model 600. Displays vary among
      different Alpha and Integrity servers.

      The indentation levels are deliberate in this display. They
      indicate the hierarchy of the adapter control blocks in the
      system. The column titles in the display have the following
      meanings:

      Column Titles   Meaning

      Bus             Identity of the bus
      Node            Index into the associated bus array; the bus
                      slot
      TR#             Nexus number of the adapter to which the
                      specified device is connected
      Name            Name of the device
      Base CSR        Base CSR address of the device

    On Alpha and Integrity servers, you can use the SDA command
    CLUE CONFIG to display additional information including hardware
    adapters and devices. This command is documented in the OpenVMS
    Alpha System Dump Analyzer Utility Manual.

    For more information about loading and configuing device drivers,
    see Writing OpenVMS Alpha Device Drivers in C.