IBM 8670 Installation Guide - Page 37

Server power features, Turning on the server, Ethernet 2 link status LED, AC power LED

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Ethernet 2 link status LED: When this LED is lit, it indicates that there is an active link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for Ethernet port 2. AC power LED: When this LED is lit, the power cord is supplying power to the power supply. If this LED is off while a power cord is connected to a valid power source and to the power supply, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD. DC power LED: When this LED is lit, the power supply is supplying the appropriate power to the server. If the server is on and this LED is off, see the Hardware Maintenance Manual and Troubleshooting Guide on the IBM xSeries Documentation CD. Ethernet 1 link status LED: When this LED is lit, it indicates that there is an active link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for Ethernet port 1. Ethernet 1 activity LED: When this LED is lit, it indicates that the server is transmitting to or receiving signals from the Ethernet LAN that is connected to Ethernet port 1. 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 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. The server can also be turned on in any of the following ways: v If a power failure occurs while the server is turned on, the server will restart automatically when power is restored. 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 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 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. Chapter 3. Server power, controls, and indicators 25

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Ethernet 2 link status LED:
When this LED is lit, it indicates that there is an active
link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for
Ethernet port 2.
AC power LED:
When this LED is lit, the power cord is supplying power to the
power supply. If this LED is off while a power cord is connected to a valid power
source and to the power supply, see the
Hardware Maintenance Manual and
Troubleshooting Guide
on the IBM
xSeries Documentation
CD.
DC power LED:
When this LED is lit, the power supply is supplying the appropriate
power to the server. If the server is on and this LED is off, see the
Hardware
Maintenance Manual and Troubleshooting Guide
on the IBM
xSeries Documentation
CD.
Ethernet 1 link status LED:
When this LED is lit, it indicates that there is an active
link connection on the 10BASE-T, 100BASE-TX, or 1000BASE-TX interface for
Ethernet port 1.
Ethernet 1 activity LED:
When this LED is lit, it indicates that the server is
transmitting to or receiving signals from the Ethernet LAN that is connected to
Ethernet port 1.
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 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. The server can also be
turned on in any of the following ways:
v
If a power failure occurs while the server is turned on, the server will restart
automatically when power is restored.
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 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 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.
Chapter 3. Server power, controls, and indicators
25