Turning Off The Server - IBM 3550 Type 7978 User Manual

v If a power failure occurs while the server is turned on, the server will restart
automatically when power is restored.
v If you installed an optional Remote Supervisor Adapter II SlimLine, the server can
be turned on from the Remote Supervisor Adapter II SlimLine user interface.
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 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 your operating-system documentation for information about shutting down the
operating system.
Chapter 1. The System x3550 Type 7978 server
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