IBM HS40 manual Blade server Ethernet controller enumeration

that is installed. See “Blade server Ethernet controller enumeration” for information about how to determine the routing from Ethernet controller to I/O-module bay for your blade server.

Note: Other types of blade servers, such as the BladeCenter HS20 Type 8678 blade server, that are installed in the same BladeCenter unit as this BladeCenter HS40 Type 8839 blade server might have different Ethernet controller routing. See the documentation that comes with the other blade servers for detailed information.

You do not need 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 your Ethernet controllers, see the Intel Ethernet Software CD that comes with your blade server. For updated information about configuring the controllers, go to the IBM Support Web site at http://www.ibm.com/pc/support/.

Your Ethernet controllers support failover, which provides automatic redundancy for your Ethernet controllers. Without failover, you can have 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. Any 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, a secondary controller takes over. When the primary link is restored, the Ethernet traffic switches back to the primary Ethernet controller. (See your 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 a blade server uses through your 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 1.

2.Make sure that the ports on the switch module or pass-thru module are enabled (click Switch Tasks → Management → Advanced Switch Management in the management-module Web-based user interface).

3.Enable only one of the Ethernet controllers on the blade server. Note the designation that the blade server operating system has for the controller.

4.Ping an external computer on the network connected to the switch module. If you can ping the external computer, the Ethernet controller that you enabled is associated with the switch module in I/O-module bay 1. The other Ethernet controller in the blade server is associated with the switch module in I/O-module bay 2.

18BladeCenter HS40 Type 8839: Hardware Maintenance Manual and Troubleshooting Guide