IBM HS20 User Guide - Page 29

Blade, server, power, controls, indicators - blade server

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Chapter 2. Blade server power, controls, and indicators This chapter describes the power features, how to turn on and turn off the blade server, and what the controls and indicators mean. Turning on the blade server After you connect the blade server to power through the BladeCenter unit, the blade server can start in any of the following ways: Note: Unless otherwise stated, references to the BladeCenter unit also apply to the BladeCenter T unit. v You can press the power-control button on the front of the blade server (behind the control panel door) to start the server. Notes: 1. Wait until the power-on LED on the blade server flashes slowly before pressing the blade server power-control button. During this time, the service processor in the management module is initializing; therefore, the power-control button on the blade server does not respond. 2. While the blade server is powering up, the power-on LED on the front of the server is lit. See "Controls and LEDs" on page 16 for the power-on LED states. v If a power failure occurs, the BladeCenter unit and then the blade server can start automatically when power is restored (if the blade server is configured through the management module to do so). v You can turn on the blade server remotely by means of the service processor in the management module. v If your operating system supports the Wake on LAN feature and the blade server power-on LED is flashing slowly, the Wake on LAN feature can turn on the blade server, if the Wake on LAN feature has not been disabled through the management-module Web interface. Turning off the blade server When you turn off the blade server, it is still connected to power through the BladeCenter unit. The blade server can respond to requests from the service processor, such as a remote request to turn on the blade server. To remove all power from the blade server, you must remove it from the BladeCenter unit. Shut down your operating system before you turn off the blade server. See your operating-system documentation for information about shutting down the operating system. 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 turning 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. © Copyright IBM Corp. 2004 15

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Chapter
2.
Blade
server
power,
controls,
and
indicators
This
chapter
describes
the
power
features,
how
to
turn
on
and
turn
off
the
blade
server,
and
what
the
controls
and
indicators
mean.
Turning
on
the
blade
server
After
you
connect
the
blade
server
to
power
through
the
BladeCenter
unit,
the
blade
server
can
start
in
any
of
the
following
ways:
Note:
Unless
otherwise
stated,
references
to
the
BladeCenter
unit
also
apply
to
the
BladeCenter
T
unit.
v
You
can
press
the
power-control
button
on
the
front
of
the
blade
server
(behind
the
control
panel
door)
to
start
the
server.
Notes:
1.
Wait
until
the
power-on
LED
on
the
blade
server
flashes
slowly
before
pressing
the
blade
server
power-control
button.
During
this
time,
the
service
processor
in
the
management
module
is
initializing;
therefore,
the
power-control
button
on
the
blade
server
does
not
respond.
2.
While
the
blade
server
is
powering
up,
the
power-on
LED
on
the
front
of
the
server
is
lit.
See
“Controls
and
LEDs”
on
page
16
for
the
power-on
LED
states.
v
If
a
power
failure
occurs,
the
BladeCenter
unit
and
then
the
blade
server
can
start
automatically
when
power
is
restored
(if
the
blade
server
is
configured
through
the
management
module
to
do
so).
v
You
can
turn
on
the
blade
server
remotely
by
means
of
the
service
processor
in
the
management
module.
v
If
your
operating
system
supports
the
Wake
on
LAN
feature
and
the
blade
server
power-on
LED
is
flashing
slowly,
the
Wake
on
LAN
feature
can
turn
on
the
blade
server,
if
the
Wake
on
LAN
feature
has
not
been
disabled
through
the
management-module
Web
interface.
Turning
off
the
blade
server
When
you
turn
off
the
blade
server,
it
is
still
connected
to
power
through
the
BladeCenter
unit.
The
blade
server
can
respond
to
requests
from
the
service
processor,
such
as
a
remote
request
to
turn
on
the
blade
server.
To
remove
all
power
from
the
blade
server,
you
must
remove
it
from
the
BladeCenter
unit.
Shut
down
your
operating
system
before
you
turn
off
the
blade
server.
See
your
operating-system
documentation
for
information
about
shutting
down
the
operating
system.
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
turning
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.
©
Copyright
IBM
Corp.
2004
15