Using
Abbreviations
for
A
ttribute
Names
and
V
alues
the
upp er
b oundary
at
20
min
utes.
If
they
are
willing
to
w
ait
30
min
utes,
y
ou
could
set
the
upp er
b oundary
at
45
min
utes.
About
the
Queue
Lo
w
er
Backlog
Boundary
Y
ou
set
the
low
er
bac
klog
b oundary
in
relation
to
the
upp er
b oundary
.
The
low
er
b oundary
aects
the
n
um
b er
of
notication
messages
y
ou
receiv
e
for
bac
klogged
queues.
If
the
low
er
b oundary
is
to
o
close
to
the
upp er
b oundary
,
the
addition
or
subtraction
of
just
a
few
jobs
in
the
queue
can
cause
the
queue
to
c
hange
either
in
to
or
out
of
the
bac
klogged
state.
The
state
might
c
hange
so
often
that
y
ou
are
unable
to
iden
tify
when
a
signicant
c
hange
in
the
n
um
b er
of
jobs
o ccurs.
If
the
low
er
b oundary
is
to
o
far
from
the
upp er
b oundary
,
it
might
take
to
o
long
for
the
queue
to
c
hange
out
of
the
bac
klogged
state.
The
queue
bac
klog
could
decrease
and
then
increase
signicantly
without
a
c
hange
in
the
state.
If
the
state
do es
not
c
hange,
y
ou
are
not
notied
when
signicant
c
hanges
o ccur.
About
the
Queue
Backlog
Update
Interv
al
The
bac
klog
up date
in
terv
al
is
the
amoun
t
of
time
that
HPDPS
w
aits
un
til
it
calculates
the
time
required
to
prin
t
all
jobs
in
the
queue.
As
a
starting
p oint,
y
ou
might
w
an
t
to
set
the
bac
klog
up date
in
terv
al
to
a
v
alue
that
is
ten
p ercen
t
of
the
upp er
bac
klog
b oundary
.
F
or
example,
if
the
upp er
b oundary
is
60
min
utes,
start
with
an
bac
klog
in
terv
al
of
six
min
utes.
The
follo
wing
describ es
the
general
eects
of
either
increasing
or
decreasing
the
bac
klog
in
terv
al.
1.
If
the
in
terv
al
is
larger
A
larger
in
terv
al
generally
results
in
smaller
increases
and
decreases
in
the
v
alue
of
the
queue-backlog
attribute
b ecause
there
is
more
time
for
jobs
to
b e
added
and
subtracted
from
the
queue.
Also,
the
addition
or
subtraction
of
a
single
large
job
has
less
of
an
eect
with
a
larger
in
terv
al
b ecause
the
calculated
v
alue
is
a
v
eraged
out
b
y
the
greater
p ossible
n
um
b er
of
smaller
jobs
added
to
or
subtracted
from
the
queue.
If
the
in
terv
al
is
larger,
the
queue
bac
klog
might
exceed
the
upp er
b oundary
and
then
fall
b elow
it
b efore
HPDPS
calculates
the
related
v
alues.
Or,
the
queue
bac
klog
might
go
b elow
the
low
er
b oundary
and
then
rise
ab o
v
e
9-24
Managing
the
Spooler,
Logical
Printers,
and
Queues