IBM 887022X Installation Guide - Page 68

Server, power, features, Turning, server

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Server power features When the server is connected to an ac power source but is not turned on, the operating system does not run, and all core logic except for the service processor is shut down; however, the server can respond to requests from the service processor, such as a remote request to turn on the server. The power-on LED flashes to indicate that the server is connected to ac power but it is not turned on. Turning on the server Approximately 20 seconds after the server is connected to ac power, the power-control button becomes active, and you can turn on the server and start the operating system by pressing the power-control button. You can also turn on the server in any of the following ways: v If the server is connected to an Advanced System Management interconnect network that contains at least one server with an optional Remote Supervisor Adapter installed, the server can be turned on from the Remote Supervisor Adapter user interface. v If a power failure occurs while the server is turned on, the server will restart automatically when power is restored. v If your operating system supports the system-management software for an optional Remote Supervisor Adapter, the system-management software can turn on the server. v If your operating system supports the Wake on LAN® feature, the Wake on LAN feature can turn on the server. Note: When you press the power-control button on either the primary or secondary server in a 16-way configuration, both servers will be turned on. If both servers do not turn on when either power-control button is pressed, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD. 56 xSeries 445 Type 8870: Installation Guide

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Server
power
features
When
the
server
is
connected
to
an
ac
power
source
but
is
not
turned
on,
the
operating
system
does
not
run,
and
all
core
logic
except
for
the
service
processor
is
shut
down;
however,
the
server
can
respond
to
requests
from
the
service
processor,
such
as
a
remote
request
to
turn
on
the
server.
The
power-on
LED
flashes
to
indicate
that
the
server
is
connected
to
ac
power
but
it
is
not
turned
on.
Turning
on
the
server
Approximately
20
seconds
after
the
server
is
connected
to
ac
power,
the
power-control
button
becomes
active,
and
you
can
turn
on
the
server
and
start
the
operating
system
by
pressing
the
power-control
button.
You
can
also
turn
on
the
server
in
any
of
the
following
ways:
v
If
the
server
is
connected
to
an
Advanced
System
Management
interconnect
network
that
contains
at
least
one
server
with
an
optional
Remote
Supervisor
Adapter
installed,
the
server
can
be
turned
on
from
the
Remote
Supervisor
Adapter
user
interface.
v
If
a
power
failure
occurs
while
the
server
is
turned
on,
the
server
will
restart
automatically
when
power
is
restored.
v
If
your
operating
system
supports
the
system-management
software
for
an
optional
Remote
Supervisor
Adapter,
the
system-management
software
can
turn
on
the
server.
v
If
your
operating
system
supports
the
Wake
on
LAN
®
feature,
the
Wake
on
LAN
feature
can
turn
on
the
server.
Note:
When
you
press
the
power-control
button
on
either
the
primary
or
secondary
server
in
a
16-way
configuration,
both
servers
will
be
turned
on.
If
both
servers
do
not
turn
on
when
either
power-control
button
is
pressed,
see
the
Hardware
Maintenance
Manual
and
Troubleshooting
Guide
on
the
IBM
xSeries
Documentation
CD.
56
xSeries
445
Type
8870:
Installation
Guide