SHOWDEV

Reports the status of input/output devices.

Syntax

   SHOWDEV [ldev     

            classname] [;ACD]

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 unrecognizable.

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

SHOWDEV

Technical documentation

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Syntax

Parameters

Operation notes

Use

Examples