v If your operating system supports the Wake on LAN feature, the Wake on LAN
feature can turn on the server.
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 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 power, one or more fans
might continue to run. To remove all power from the server, you must disconnect it
from the power source.
Attention: In a dc power environment, only trained service personnel other than
IBM service technicians are authorized to connect or disconnect power to the dc
power supply. See the documentation that comes with each dc power supply.
Some operating systems require an orderly shutdown before you turn off the server.
See your 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.
1
2
Attention: In a dc power environment, only trained service personnel other than
IBM service technicians are authorized to connect or disconnect power to the dc
power supply. See the documentation that comes with each dc power supply.
Chapter 3. Server controls, LEDs, and power 39
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