3. To install an operating system after the hard disk drive is formatted, follow the
instructions in the ServerGuide topic.
Configuring the Ethernet controller
Your IBM xSeries 240 comes with an Ethernet controller on the system board. The
Ethernet controller provides 10BASE-T and 100BASE-TX support through the
RJ-45 connector on the back of your server. When you connect your server to the
network, the Ethernet controller automatically detects the data-transfer rate
(10 Mbps or 100 Mbps) on the network and then sets the controller to operate at the
appropriate rate. That is, the Ethernet controller will adjust to the network data
rate, whether the data rate is standard Ethernet (10BASE-T), Fast Ethernet
(100BASE-TX), half duplex (HDX), or full duplex (FDX). This process is also
known as auto-negotiating. This auto-negotiation occurs without requiring software
intervention. The controller supports half-duplex (HDX) and full-duplex (FDX)
modes at both speeds.
Note: The 100BASE-TX Fast Ethernet standard requires that the cabling in the
network be Category 5 or higher.
The Ethernet controller is a PCI device, and is therefore, a Plug and Play device.
You do not have to set any jumpers or configure the controller for your operating
system before you use the Ethernet controller. However, you must install a device
driver to enable your operating system to address the Ethernet controller (refer to
the ServerGuide topic or to your operating-system documentation).
For troubleshooting information, see “Troubleshooting the Ethernet controller” on
page 148.
If you need additional Ethernet connections, you can install an Ethernet adapter,
such as the IBM 10/100 PCI Ethernet adapter. Review your network-adapter
documentation for any additional configuration requirements and for troubleshooting
information.
Failover for redundant Ethernet
Your IBM xSeries 240 has an integrated Ethernet controller. The IBM Netfinity
10/100 Fault Tolerant Adapter is an optional redundant network interface card (NIC
adapter) that you can install in your server. If you install this NIC adapter and
connect it to the same logical segment as the primary Ethernet controller, you can
configure the server to support a failover function. You can configure either the
integrated Ethernet controller or the NIC adapter as the primary Ethernet controller.
In failover mode, if the primary Ethernet controller detects a link failure, all Ethernet
traffic associated with it is switched to the redundant (secondary) controller. This
switching occurs without any user intervention. When the primary link is restored to
an operational state, the Ethernet traffic switches back to the primary Ethernet
controller. The switch back to the primary Ethernet controller can be automatic or
manually controlled depending on the setup and operating system.
Note that only one controller in the redundant pair is active at any given time. For
example, if the primary Ethernet controller is active, the secondary Ethernet
controller cannot be used for any other network operation.
Chapter 3. Configuring your server
35
Summary of Contents for eServer 240 xSeries
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Page 219: ...IBM Part Number 21P9014 Printed in the United States of America 21P9 14...