1    /ADDRESS

       /ADDRESS=ucb-address

    Indicates the device for which data structure information is
    to be displayed by the address of its unit control block (UCB).
    The /ADDRESS qualifier is an alternate method of supplying a
    device name to the SHOW DEVICE command. If both the device-name
    parameter and the /ADDRESS qualifier appear in a single SHOW
    DEVICE command, SDA responds only to the parameter or qualifier
    that appears first. /ADDRESS is functionally equivalent to /UCB.

2    /BITMAP

    Displays information about data structures related to Write
    Bitmap (WBM). Bitmaps are used by Host-Base Volume Shadowing
    (HBVS) for the implementation of Mini Copy and Host-Based
    Minimerge (HBMM). If the /BITMAP qualifier is specified with a
    device that is not an HBVS virtual unit, the error NOSUCHDEV is
    returned.

    A device name must be specified. If SHOW DEVICE/BITMAP DS is
    entered, bitmaps for all HBVS virtual units are displayed.

3    /CDT

       /CDT=cdt_address

    Identifies the device by the address of its Connector Descriptor
    Table (CDT). This applies to cluster port devices only.

4    /CHANNELS

    Displays information on active Memory Channel channel blocks.
    This qualifier is ignored for devices other than Memory Channel.

5    /HOMEPAGE

    Displays fields from the Memory Channel Home Page. This qualifier
    is ignored for devices other than Memory Channel.

6    /PDT

    Displays the Memory Channel Port Descriptor Table. This qualifier
    is ignored for devices other than Memory Channel.

7    /UCB

       /UCB=ucb-address

    See the description of /ADDRESS, which is functionally equivalent
    to /UCB.