IBM xSeries 236 8841, Руководство пользователя

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Note: When 4 GB or more of memory (physical or logical) is installed, some
memory is reserved for various system resources and is unavailable to the
operating system. The amount of memory that is reserved for system
resources depends on the operating system, the configuration of the server,
and the configured PCI options.
Turning off the server
When you turn off the server and leave it connected to ac power, the server can
respond to requests from the service processor, such as a remote request to turn
on the server. While the server remains connected to ac power, one or more fans
might continue to run. To remove all power from the server, you must disconnect it
from the power source.
Some operating systems require an orderly shutdown before you turn off the server.
See the operating-system documentation for information about shutting down the
operating system.
Statement 5
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.
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The server can be turned off in any of the following ways:
v
You can turn off the server from the operating system, if your operating system
supports this feature. After an orderly shutdown of the operating system, the
server will be turned off automatically.
v
You can press the power-control button to start an orderly shutdown of the
operating system and turn off the server, if your operating system supports this
feature.
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 server.
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 off from the Remote Supervisor
Adapter user interface.
v
If an optional Remote Supervisor Adapter is installed in the server, the server can
be turned off from the Remote Supervisor Adapter user interface.
v If the Wake on LAN feature turned on the server, the Wake on LAN feature can
turn off the server.
v
The integrated system management processor can turn off the server as an
automatic response to a critical system failure.
v You can turn off the server through a request from the service processor.
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xSeries 236 Type 8841: Hardware Maintenance Manual and Troubleshooting Guide