Stopping
the
System
This
section
discusses
the
various
ways
to
stop
the
system.
Attention:
Using
the
power-on
button
on
the
operator
panel
or
commands
at
the
HMC
to
power
off
the
system
can
cause
unpredictable
results
in
the
data
files.
The
next
initial
program
load
(IPL)
will
also
take
longer
to
complete
if
all
applications
are
not
stopped
beforehand.
Stopping
the
System
without
a
Hardware
Management
Console
(HMC)
Attached
Attention:
When
shutting
down
your
system,
shut
down
all
applications
first
and
then
shut
down
the
operating
system.
The
system
power
turns
off
and
the
system
goes
into
standby
mode
when
the
operating
system
is
shut
down.
If
you
are
shutting
down
your
system
due
to
an
error
or
to
make
a
repair,
write
down
the
information
displayed
on
the
operator
panel
before
turning
off
the
system
power.
Before
removing
power
from
the
system,
ensure
that
the
shutdown
process
is
complete.
Failure
to
do
so
can
result
in
the
loss
of
data.
Some
option-installation
procedures
do
not
require
the
system
to
be
stopped
for
installation.
The
option-installation
procedures
in
this
chapter
will
direct
you
here
if
stopping
the
system
is
required.
1.
Log
in
to
the
system
as
root
user.
2.
Stop
all
applications
that
are
running
on
the
system.
3.
At
the
command
line,
type
one
of
the
following
commands:
v
If
your
system
is
running
AIX,
type
shutdown
v
If
your
system
is
running
Linux,
type
shutdown
now
-h
4.
After
you
shut
down
the
operating
system,
set
the
power
switches
of
any
attached
devices
to
Off.
Stopping
the
System
with
an
HMC
Attached
and
AIX
Installed
The
HMC
user
interface
provides
a
power-off
function
to
turn
off
the
power
to
the
system.
AIX
provides
hot-swap
procedures
for
adapters
and
devices
that
support
hot-swap
removal
and
installation.
Individual
power
components
and
fans
can
be
serviced
with
the
power
on
for
power
systems
equipped
with
redundant
power
and
cooling.
Before
servicing
the
system,
check
removal,
replacement,
and
installation
procedures.
If
the
system
is
running
AIX,
typing
the
shutdown
command
causes
the
system
to
shut
down
and
power
off.
Check
with
the
system
administrator
before
using
this
command.
If
you
cannot
use
this
method,
you
can
power
off
the
system
by
pressing
the
power-on
button
on
the
operator
panel
or
typing
the
appropriate
command
at
the
HMC.
Stopping
the
System
with
an
HMC
Attached
and
Linux
Installed
The
HMC
user
interface
provides
a
power-off
function
to
turn
off
the
power
to
the
system.
Linux
does
not
provide
hot-swap
procedures
for
adapter
and
device
removal
and
installation.
The
system
power
must
be
turned
off
to
service
an
adapter
or
device.
Individual
power
components
and
fans
may
be
serviced
with
power
on
for
power
systems
equipped
with
redundant
power
and
cooling.
Before
servicing
this
system,
check
removal
and
installation
procedures.
If
the
system
is
operating
under
Linux,
typing
the
shutdown
now
-h
command
causes
the
system
to
shut
down
and
power
off.
Check
with
the
system
administrator
before
using
this
command.
If
you
cannot
use
this
method,
you
can
power
off
the
system
by
pressing
the
power-on
button
on
the
operator
panel
or
typing
the
appropriate
command
at
the
HMC.
282
Eserver
pSeries
615
Service
Guide
Summary of Contents for P 615 series
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