The
following
information
gives
details
about
the
previously
mentioned
controls,
LEDs,
and
connectors
on
the
front
of
the
server.
The
location
of
these
items
vary
depending
on
the
hardware
configuration
you
have.
v
Hot-swap
hard
disk
drive
activity
LED:
This
LED
is
used
on
SCSI
hard
disk
drives.
Each
hot-swap
hard
disk
drive
has
an
activity
LED,
and
when
this
LED
is
flashing,
it
indicates
that
the
drive
is
in
use.
v
Hot-swap
hard
disk
drive
status
LED:
This
LED
is
used
on
SCSI
hard
disk
drives.
When
this
LED
is
lit,
it
indicates
that
the
drive
has
failed.
If
an
optional
IBM
ServeRAID
™
controller
is
installed
in
the
server,
when
this
LED
is
flashing
slowly
(one
flash
per
second),
it
indicates
that
the
drive
is
being
rebuilt.
When
the
LED
is
flashing
rapidly
(three
flashes
per
second),
it
indicates
that
the
controller
is
identifying
the
drive.
v
DVD-eject
button:
Press
this
button
to
release
a
DVD
or
CD
from
the
DVD-ROM
drive.
v
DVD-ROM
drive
activity
LED:
When
this
LED
is
lit,
it
indicates
that
the
DVD-ROM
drive
is
in
use.
Note:
The
DVD-ROM
option
is
available
only
on
the
3.5-inch
drive
configurations
(either
SCSI
or
SATA
hard
disk
drives).
Operator
information
panel
The
operator
information
panel
is
on
the
front
right
side
of
the
server.
The
following
illustration
shows
the
LEDs
on
the
front
of
the
operator
information
panel,
followed
by
a
description
of
each
LED
(from
left
to
right):
USB connector
Power LED (green)
Power control button
Hard disk drive
activity LED (green)
Location LED (blue)
Information LED (amber)
System-error LED (amber)
Release latch
v
USB
connector:
Connect
a
USB
device
to
this
connector.
v
Power
LED:
When
this
green
LED
is
lit
and
not
flashing,
it
indicates
that
the
server
is
turned
on.
When
this
LED
is
flashing,
it
indicates
that
the
server
is
turned
off
and
is
still
connected
to
an
ac
power
source.
When
this
LED
is
off,
it
indicates
that
ac
power
is
not
present,
or
the
power
supply
or
the
LED
itself
has
failed.
A
power
LED
is
also
on
the
rear
of
the
server.
Note:
If
this
LED
is
off,
it
does
not
mean
that
there
is
no
electrical
power
in
the
server.
The
LED
might
be
burned
out.
To
remove
all
electrical
power
from
the
server,
you
must
disconnect
the
power
cord
from
the
electrical
outlet.
v
Power-control
button:
Press
this
button
to
turn
the
server
on
and
off
manually.
A
power-control-button
shield
comes
with
the
server.
You
can
install
this
disk-shaped
shield
to
prevent
the
server
from
being
turned
off
accidentally.
v
Hard
disk
drive
activity
LED:
When
this
green
LED
is
lit,
it
indicates
that
one
of
the
hard
disk
drives
is
in
use.
28
IBM
xSeries
336
Type
8837:
Installation
Guide
Summary of Contents for 883725U
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