Specifications

SHOW DEVICE
SHOW DEVICE
Displays information on device drivers loaded into the system, the devices
connected to them, and their I/O databases. All addresses are in hexadecimal
and are virtual.
Format
IO SHOW DEVICE
Parameters
None.
Qualifiers
None.
Description
The SHOW DEVICE command displays information on the device drivers loaded
into the system, the devices connected to them, and their I/O databases.
The SHOW DEVICE command specifies that the following information be
displayed about the specified device driver:
Driver Name of the driver
Dev Name of each device connected to the driver
DDB Address of the device’s device data block
CRB Address of the device’s channel request block
IDB Address of the device’s interrupt dispatch block
Unit Number of each unit on the device
UCB Address of each unit’s unit control block
All addresses are in hexadecimal and are virtual.
Refer to A Comparison of System Management on OpenVMS AXP and OpenVMS
VAX and the OpenVMS System Manager’s Manual for additional information on
SYSMAN.
Example
SYSMAN> IO SHOW DEVICE
The following is a sample display produced by the SYSMAN IO SHOW DEVICE
command:
10–10