SHOW, DEVICES, Parameter
*Conan The Librarian
device-name[:] Specifies the name of a device for which information is to be displayed. The device name displayed by the system uses the format ddcu where dd is the device code, c is the controller designation, and u is the unit number. If the system is part of an OpenVMS Cluster that is running with HSC controllers, the device name must include the node name using the format node$ddcu (where node is the node name). You can specify a complete device name or only a portion of a device name. The SHOW DEVICES command provides defaults for nonspecified portions of device names, as follows: o If you truncate a device name (for example, if you specify D), the command lists information about all devices whose device names begin with what you entered (in this case, D). However, if you specify a device in an OpenVMS Cluster that is running with HSC controllers, you must include the entire node portion of the device name. o If you omit a controller designation, the SHOW DEVICES command lists all devices on all controllers with the specified unit number. o If you omit a unit number, the SHOW DEVICES command lists all devices on the specified controller. Note that the /FILES qualifier does not support defaults for nonspecified portions of device names; you must supply a complete device specification.