Technical data

System Dump Analyzer
SHOW DEVICE
SHOW DEVICE
Displays a list of all devices in the system and their associated data structures or
displays the data structures associated with a given device or devices.
Format
SHOW DEVICE {device-name | /ADDRESS=ucb-address}
Parameter
device-name
Device or devices for which data structures are to be displayed. There are several
uses of the device-name parameter.
To Display the Structures
for . . . Action
All devices in the system Do not specify a device-name (for example,
SHOW DEVICE).
A single device Specify an entire device-name (for example,
SHOW DEVICE VTA20).
All devices of a certain type
on a single controller
Specify only the device type and controller
designation (for example, SHOW DEVICE RTA
or SHOW DEVICE RTB).
All devices of a certain type
on any controller
Specify only the device type (for example, SHOW
DEVICE RT).
All devices whose names
begin with a certain
character or character string
Specify the character or character string (for
example, SHOW DEVICE D).
All devices on a single node
or HSC
Specify only the node name or HSC name (for
example, SHOW DEVICE GREEN$).
In a VAXcluster environment, device information is displayed for each device in
the cluster with the specified device-name. You can limit the display to those
devices that are on a particular node or HSC by specifying the node name or HSC
name as part of the device-name (for example, GREEN$D or GREEN$DB).
Qualifier
/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 thus 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.
SDA–103