IBM 8478 Hardware Maintenance Manual - Page 18

Turning, server

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Hard disk drive activity light: When this light is on, it indicates that the hard disk drive is in use. Power-on light: This status indicator lights when you turn on your server. Power control button: Press this button to manually turn the server on or off. See "I/O connector locations" on page 72 for the location of the input/output (I/O) connectors on the rear of the server. Turning on the server After you plug one end of the server power cord into the power supply outlet on the rear of the server, and the other end of the power cord into an electrical outlet, the server can start as follows: v You can press the power control button on the front of the server to start the server. v If the server is turned on and a power failure occurs, the server will start automatically when power is restored. CAUTION: The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source. 2 1 Turning off the server You can turn off the server in any of the following ways: v You can press the power control button on the front of the server. This starts an orderly shutdown of the operating system, if this feature is supported by your operating system, and places the server in standby mode. Note: After turning off the server, wait at least five seconds before you press the power control button to turn on the server again. 8 Hardware Maintenance Manual: xSeries 200

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Hard
disk
drive
activity
light:
When
this
light
is
on,
it
indicates
that
the
hard
disk
drive
is
in
use.
Power-on
light:
This
status
indicator
lights
when
you
turn
on
your
server.
Power
control
button:
Press
this
button
to
manually
turn
the
server
on
or
off.
See
“I/O
connector
locations”
on
page
72
for
the
location
of
the
input/output
(I/O)
connectors
on
the
rear
of
the
server.
Turning
on
the
server
After
you
plug
one
end
of
the
server
power
cord
into
the
power
supply
outlet
on
the
rear
of
the
server,
and
the
other
end
of
the
power
cord
into
an
electrical
outlet,
the
server
can
start
as
follows:
v
You
can
press
the
power
control
button
on
the
front
of
the
server
to
start
the
server.
v
If
the
server
is
turned
on
and
a
power
failure
occurs,
the
server
will
start
automatically
when
power
is
restored.
CAUTION:
The
power
control
button
on
the
device
and
the
power
switch
on
the
power
supply
do
not
turn
off
the
electrical
current
supplied
to
the
device.
The
device
also
might
have
more
than
one
power
cord.
To
remove
all
electrical
current
from
the
device,
ensure
that
all
power
cords
are
disconnected
from
the
power
source.
1
2
Turning
off
the
server
You
can
turn
off
the
server
in
any
of
the
following
ways:
v
You
can
press
the
power
control
button
on
the
front
of
the
server.
This
starts
an
orderly
shutdown
of
the
operating
system,
if
this
feature
is
supported
by
your
operating
system,
and
places
the
server
in
standby
mode.
Note:
After
turning
off
the
server,
wait
at
least
five
seconds
before
you
press
the
power
control
button
to
turn
on
the
server
again.
8
Hardware
Maintenance
Manual:
xSeries
200