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 to each
other.
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 switch-module bay depends on
the type of blade server. You can verify which Ethernet controller is routed to which
switch-module bay by using the following test:
1. Install only one Ethernet switch module or pass-thru module, in switch-module
bay 1.
2. Make sure the ports on the switch module or pass-thru module are enabled
(
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 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 you enabled is
associated with the switch module in switch-module bay 1. The other Ethernet
controller in the blade server is associated with the switch module in
switch-module bay 2.
If you have installed an I/O expansion card on a blade server, communications from
the option are routed to switch-module bays 3 and 4. You can verify which controller
on the card is routed to which switch-module bay by performing the above test,
using a controller on the I/O expansion card and a compatible switch module or
pass-thru module in switch bay 3 or 4.
Chapter 4. Configuring your blade server
51
Summary of Contents for BladeCanter HS20
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