SHOWDEV



SHOWDEV

     Reports the status of input/output devices.  (CM)

SYNTAX


SHOWDEV [ldev ]
[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.

OPERATION


Displays the status information for all input/output devices
on the system. The display appears in the following format

SHOWDEV

NOTE Display spacing has been changed after the 4.7 release.

New total number of blanks in between items:

5 9 9 9 3
LDEV AVAIL OWNERSHIP VOLID DEN ASSOC.
1 DISC N/A
2 DISC N/A
3 DISC N/A
4 DISC N/A
5 AVAIL
6 SPOOLED SPOOLER OUT
7 AVAIL
8 AVAIL
9 AVAIL
10 A AVAIL
11 DISC N/A
12 DISC N/A
13 DISC N/A
14 DISC N/A
15 DISC N/A
16 DISC N/A
17 AVAIL
18 AVAIL
19 SPOOLED
20 A UNAVAIL #S914: 8 FILES
21 A AVAIL

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,
nonsharable device.

AVAIL(W) The device is a tape with write enable
on the media.

SPOOLED The device is available via 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 via 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 written in the ANSI format.

NOLABEL The named magnetic tape volume that has no
label. Default.

DEN Density of the tape and 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 unrecognizable.

ASSOCIATION Indicates the logical devices by device class which
have been established by the user with the ASSOCIATE command.

This command may be issued from a session, job, in BREAK, or
from a program. Pressing [Break] aborts the execution of this command.

EXAMPLE(S)

     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

ADDITIONAL INFORMATION

Commands:   DISCRPS