SHOWDEV
Reports the status of input/output devices.
Syntax
SHOWDEV [ldev ] [;ACD]
[classname]
Parameters
ldev Logical device number of device for which status
information is to be displayed. This number is
unique for each device. Default is that status
information for all system devices on the system is
displayed.
classname Device class name of device(s) for which status
information is to be displayed. This name may
apply to several devices. Default is that status
information for all devices on the system is
displayed.
ACD Keyword requesting display of access control
definition (ACD)f or the device.
Operation notes
Displays the status information for all input/output devices on the
system. The display appears in the following format:
SHOWDEV
LDEV AVAIL OWNERSHIP VOLID DEN ASSOCIATION
1 DISC 43 FILES
6 SPOOLED SPOOLER OUT
8 AVAIL
20 A UNAVAIL #S311: 7 FILES
The following items may appear in the listing, always displayed on the
standard list device:
COLUMN MEANING
LDEV Includes the logical device number and may include
one of the following:
J Accepts jobs
D Accepts data
A Accepts jobs and data
AVAIL Lists the availability of devices and disks as
follows:
AVAIL The device is available as a
real, nonshareable device.
SPOOLED The device is available for
input or output spooling.
UNAVAIL The device is not available;
it is under the control of a
job, session, or a system
process, such as a spooler.
DISC The device is a disk and is
always available.
DISC (RPS) The device is a CS-80 disk on
which rotational position
sensing (RPS) has been
enabled.
OWNERSHIP Includes device ownership and may include one of
the following:
SYS Controlled by the system. If
#nnn appears, it specifies
the process identification
number (PIN) of the
controlling process
(program).
SPOOLER IN Input spooling in effect,
controlled by spooler.
SPOOLER OUT Output spooling in effect,
controlled by spooler.
#Jnnn Controlled by the indicated
job.
#Snnn Controlled by the indicated
session.
nn FILES Indicates number of files
currently in use on a disk.
DOWN Device is offline, requested
by system operator with the
DOWN command.
DP Device is being taken offline
(DOWN command operation
pending).
VOLID The volume identification and
may include one of the
following:
IBM The
named
magnetic
tape
volume
that
has a
label
written
in the
IBM
format.
ANSI The
named
magnetic
tape
volume
that
has a
label.
NOLABEL The
named
magnetic
tape
volume
that
has no
label.
Default.
DEN Density of the tape, which
may include one of the
following:
6250 Density
of 6250
BPI
(bytes-
per-inch).
1600 Density
of 1600
BPI, or
the
density
of the
tape is
unrecog-
nizable.
ASSOCIATION Indicates the logical devices
by device class that have
been established by the user
with the ASSOCIATE command.
ACD Access Control Definition.
May include any of the
following information per
username.acctname:
R Read
access.
W Write
access.
L Lock
access.
A Append
access.
X Execute
access.
None No
access.
RACD Copy or
read
the
ACD.
Use
This command may be issued from a session, a job, a program, or in Break.
Pressing Break aborts the execution of this command.
Examples
To display the status of the device identified by logical device number
5, enter:
SHOWDEV 5
LDEV AVAIL OWNERSHIP VOLID DEN ASSOCIATION
5 SPOOLED SPOOLER OUT
To display the status of all devices of the device class CARD, enter:
SHOWDEV CARD
LDEV AVAIL OWNERSHIP VOLID DEN ASSOCIATION
6 A AVAIL