STREAMS


STREAMS

     Enables or disables the STREAMS device; it permits users to
submit job/data streams or prevents them from doing so. (CM)

SYNTAX


STREAMS {ldev}
{OFF }


PARAMETERS


ldev The logical device number of the STREAMS device.
This device must also have an output device number
or class that references logical devices of type 32.
Any input device, except the system console or
terminals, may be used, providing that it was
configured as job-accepting in the SYSGEN dialog.

OFF Disables the STREAMS facility.


OPERATION


The operator executes this command after a startup to enable
the STREAMS facility. The STREAMS device must be enabled
each time the system is brought back online in order to
allow users to stream jobs. (Streamed jobs are processed
separately by MPE/iX, allowing users to continue with other
work at their terminal. If the streamed job is submitted on
a tape drive rather than from a terminal, MPE/iX will
process it without requiring the user's attention.) Any
attempt to stream a job when the STREAMS facility is
disabled generates the following message

STREAM FACILITY NOT ENABLED SEE OPERATOR. (CIERR 82)

However, ldev 10 may not correspond to an actual device,
such as a tape drive or card reader, physically connected to
the computer. If this is the case, then the STREAMS device
is considered a "pseudo-device". Regardless of whether the
device physically exists or not, it must be entered into the
I/O Configuration Table as a legitimate logical device. It
must be assigned the device class JOBTAPE.

This command may be issued from a session, job, in BREAK, or
from a program. Pressing [Break] has no effect on this
command. It may be issued only from the console, unless it is
distributed to users with the ALLOW command.


EXAMPLE(S)

     To enable jobs and data streams on logical device number 10, enter

STREAMS 10

To disable data streams, enter

STREAMS OFF

ADDITIONAL INFORMATION

     Refer to the discussion of "How to Stream Jobs" in the
STREAM command.

Commands: STREAM

Manuals : Performing System Operation Tasks (32650-90137)