This
will
be
an
introduction
to
subsystems
on
i5/
OS
for
those
new
to
System
i
or
for
those
needing
a
refresher
course.
We値l
start
with
an
overview
of
subsystems
including
the
properties
of
a
subsystem
description.
Next
we値l
compare
the
two
default
controlling
subsystems,
QBASE
and
QCTL
and
the
different
environments
each
starts
up.
Each
default
subsystem
will
be
presented
with
time
spent
on
those
configured
to
handle
user
work
(QINTER,
QUSRWRK,
etc.).
The
next
step
in
understanding
the
configuration
of
subsystems
start
with
a
primer
on
workstation,
autostart,
job
queue,
and
prestart
entries.
The
others
will
be
mentioned
and
described
but
will
be
discussed
more
in
the
Advanced
Subsystem
presentation.
During
this
time,
we値l
tie
in
the
shipped
default
values
of
these
contained
in
the
default
subsystem
descriptions.
Information
will
be
provided
to
help
members
of
the
audience
determine
if
the
default
values
should
be
changed
to
meet
their
IT
needs.
Finally
we値l
run
through
the
creation
of
a
subsystem
to
handle
interactive
work.
This
includes
the
creation
of
a
class
object
and
a
simple
routing
entry.
Sources
of
data
used
to
start
the
job,
such
as
information
in
a
job
description
and
user
profile,
will
be
presented.
Finally
we値l
talk
about
the
advantages
of
distributing
interactive
work
across
multiple
subsystems
highlighting
differences
between
the
new
multi-threaded
subsystem
implementation
in
V5R4,
and
legacy
i5/
OS
releases.
By
the
end
of
this
session,
attendees
will
be
able
to:
1.
Understand
all
aspects
of
a
subsystem
description
and
changes
in
V5R4
to
subsystems.
2.
Determine
if
default
subsystems
need
to
be
changed
to
meet
IT
needs.
3.
Configure
multiple
subsystems
to
distribute
interactive
work
dynamically.
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