Blade Server Ethernet Controller Enumeration - IBM HS21 - BladeCenter - 8853 User Manual

You do not have to set any jumpers or configure the controllers for the blade server
operating system. However, you must install a device driver to enable the blade
server operating system to address the Ethernet controllers. For device drivers and
information about configuring the Ethernet controllers, see the Broadcom NetXtreme
Gigabit Ethernet Software CD that comes with the blade server. For updated
information about configuring the controllers, see http://www.ibm.com/systems/
support/.
failover, which provides automatic The Ethernet controllers in your blade server
support redundancy for the Ethernet controllers. Without failover, you can have only
one Ethernet controller from each server attached to each virtual LAN or subnet.
With failover, you can configure more than one Ethernet controller from each server
to attach to the same virtual LAN or subnet. Either one of the integrated Ethernet
controllers can be configured as the primary Ethernet controller. If you have
configured the controllers for failover and the primary link fails, the secondary
controller takes over. When the primary link is restored, the Ethernet traffic switches
back to the primary Ethernet controller. See the operating-system device-driver
documentation for information about configuring for failover.
Important: To support failover on the blade server Ethernet controllers, the Ethernet
switch modules in the BladeCenter unit must have identical configurations.

Blade server Ethernet controller enumeration

The enumeration of the Ethernet controllers in a blade server is operating-system
dependent. You can verify the Ethernet controller designations that a blade server
uses through the operating-system settings.
The routing of an Ethernet controller to a particular I/O-module bay depends on the
type of blade server. You can verify which Ethernet controller is routed to which
I/O-module bay by using the following test:
1. Install only one Ethernet switch module or pass-thru module in I/O-module bay
2. Make sure that the ports on the switch module or pass-thru module are enabled
3. Enable only one of the Ethernet controllers on the blade server. Note the
4. Ping an external computer on the network connected to the switch module or
If you have installed an I/O-expansion card in the blade server, communication from
the expansion card is routed to I/O-module bays 3 and 4, if these bays are
supported by your BladeCenter unit. You can verify which controller on the card is
routed to which I/O-module bay by performing the same test and using a controller
on the expansion card and a compatible switch module or pass-thru module in
I/O-module bay 3 or 4.
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BladeCenter HS21 Type 8853: Installation and User's Guide
1.
(click I/O-module Tasks → Management → Advanced Management in the
management-module Web-based user interface).
designation that the blade server operating system has for the controller.
pass-thru module. If you can ping the external computer, the Ethernet controller
that you enabled is associated with the switch module or pass-thru module in
I/O-module bay 1. The other Ethernet controller in the blade server is
associated with the switch module or pass-thru module in I/O-module bay 2.