IBM xSeries 382, User Manual

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visually locating the server. This LED can also be turned on remotely by the
system administrator. There are system ID buttons and LEDs on the front
and rear of the server.
System status/fault LED
When this LED is lit green, it indicates normal operation. When this LED is
lit amber, it indicates that a system error has occurred. Detailed
troubleshooting information is in the
Hardware Maintenance Manual and
Troubleshooting Guide on the IBM xSeries Documentation CD.
Hard disk drive activity/failure LED
When this amber LED is flashing, it indicates that a hard disk drive is in
use. When this LED is lit continuously (not flashing), it indicates a hard disk
drive failure. Detailed troubleshooting information is in the
Hardware
Maintenance Manual and Troubleshooting Guide on the IBM xSeries
Documentation CD.
Ethernet1/Ethernet2 activity LEDs
There are two Ethernet activity LEDs, one for each Ethernet controller in
your server. When each LED is flashing, it indicates that there is activity
between one of the Ethernet controllers and the network. The LEDs are off
if there is no Ethernet connection and are lit continuously if there is a
connection with no activity. Ethernet link status and speed LEDs are also on
each Ethernet connector on the rear of the server.
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 is shut down; however, the server
can respond to remote requests to turn on the server. The power supply LEDs flash
to indicate that the server is connected to an ac power source but is not turned on
(standby mode).
Turning on the server
Notes:
1. Turn on all external devices, such as the monitor, before turning on the server.
2. The power-on LED on the front of the server is lit when the server is on and
while it is powering up.
Approximately 10 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. If a power failure occurs
while the server is turned on, the server can be configured to restart automatically
when power is restored. See the
Resource CD for information about configuring
power options using the System Maintenance Utility.
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.
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IBM eServer xSeries 382 Type 8834: User’s Guide