To
avoid
loss
of
data,
shut
down
the
Linux
operating
system
before
you
turn
off
the
blade
server.
Shut
down
the
operating
system
by
typing
the
shutdown
-h
now
command.
See
your
operating
system
documentation
for
additional
information
about
shutting
down
the
operating
system.
If
the
blade
server
has
not
been
turned
off,
the
blade
server
can
be
turned
off
in
any
of
the
following
ways:
v
You
can
press
the
power-control
button
on
the
blade
server
(behind
the
control-panel
door).
This
starts
an
orderly
shutdown
of
the
operating
system,
if
this
feature
is
supported
by
your
operating
system.
Note:
After
you
have
turned
off
the
blade
server,
wait
at
least
5
seconds
before
you
press
the
power
control
button
to
turn
on
the
blade
server
again.
v
If
the
operating
system
stops
functioning,
you
can
press
and
hold
the
power
control
button
for
more
than
4
seconds
to
turn
off
the
blade
server.
v
You
can
use
the
BladeCenter
Management
Module
Web
interface
to
turn
on
the
blade
server
remotely.
Note:
After
you
have
turned
off
the
blade
server,
wait
at
least
30
seconds
for
the
hard
disk
drive
to
stop
spinning
before
you
remove
the
blade
server
from
the
BladeCenter
unit.
Blade
server
controls
and
LEDs
This
section
describes
the
controls
and
LEDs
on
the
blade
server.
Power
control
button:
This
button
is
behind
the
control-panel
door.
Press
this
button
to
manually
turn
the
blade
server
on
or
off.
Note:
The
power
control
button
has
effect
only
if
local
power
control
is
enabled
for
the
blade
server.
Local
power
control
is
enabled
and
disabled
through
the
BladeCenter
Management
Module
Web
interface.
Notes:
v
The
control
panel
door
is
shown
in
the
closed
(normal)
position
in
this
illustration.
Figure
2.
Power
control
button
6
BladeCenter
QS20
Type
0200:
Problem
Determination
and
Service
Guide
Summary of Contents for BladeCenter QS20
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Page 8: ...vi BladeCenter QS20 Type 0200 Problem Determination and Service Guide...
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Page 49: ...v Operating system control file setup Chapter 2 Diagnostics and troubleshooting 31...
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Page 100: ...Part Number 42C4969 Printed in USA SC33 8297 00 1P P N 42C4969...
