QIO Configuration and Management Manual

Introduction to QIO

QIO Configuration and Management Manual—424717-008

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QIO SCF Subsystem

The QIO Subsystem Control Facility (SCF) subsystem provides the SCF commands

used to configure and manage the various QIO subsystem objects.



The MON and SEGMENT objects are at the highest point of the hierarchy, with all

other objects subordinate to them. (The null object is not an actual object type but

is used in commands that do not require specification of an object type.)



Immediately subordinate to the MON object are the APPL and QUEUE objects.

The MON, SEGMENT, APPL, and QUEUE objects (see following subsections) are

supported by the QIO SCF subsystem. A brief description is provided here; detailed

information about the QIO SCF subsystem objects and commands is given in

Section 4, QIO Subsystem SCF Commands, and software configuration planning is

described in Section 2, Configuring the QIO Subsystem.

MON Object

The MON object refers to the QIOMON process that is running in each processor.

The MON object name is the same as the process name used when the QIOMON

process was started (persistence manager process).

SEGMENT Object

The SEGMENT object represents the shared memory segment and the objects within

the segment, including buffer lists, message descriptor lists, and pool space.

The object name for the SEGMENT object is the same as that for the MON object

name.

Most of the attributes for the SEGMENT object are specified in a configuration file.

APPL Object

The APPL object refers to the client processes that are using the QIO subsystem.

Each APPL object is associated with a client process that is using the QIO subsystem.

The APPL name has the following format:

QIOMON_process_name.#application_process_name

For example, $ZM02.#ZTC2 is a QIO client process under the $ZM02 QIOMON

process.

The APPL object refers to the client processes that are using the QIO subsystem.

QUEUE Object

The QUEUE object represents the queues created by an APPL object. It is subordinate

to the MON object.