v
If ac power is present, the server can be turned on from the Remote Supervisor
Adapter user interface.
v
The Wake on LAN
®
feature can turn on the server.
Notes:
1. The power supplies are hot-swappable and redundant only at 200-240 V ac.
2. Both power supplies must be connected to the power source for operation at
100-127 V ac.
3. During normal operation, both power supplies must be installed for proper
operation.
4. While the server is powering up, the power-on LED on the front of the server is
lit. When the server is connected to ac power but is not turned on, the power-on
LED on the front of the server flashes.
5. When you press the power-control button on any server in a scalable partition,
all servers in the scalable partition will be turned on. If the servers do not turn
on when the power-control button is pressed, see the
Hardware Maintenance
Manual and Troubleshooting Guide
on the IBM
xSeries Documentation
CD.
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. 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 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
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.
Chapter 2. Installing options
15
Summary of Contents for xSeries 455
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