Question

An engineer installs a new UCS 5108 chassis with two 2408 IOMs, each cabled with four links to the fabric interconnects. After the chassis is acknowledged, the newly inserted B200 blades remain in a 'Discovery' state and never come online. The chassis discovery policy is set to '4 Link' and the link grouping preference is set to 'Port Channel'. Investigation shows only two of the four cables per IOM are actually connected. What is the most likely cause and resolution?

Accepted Answer

The chassis discovery policy requires the minimum configured number of links (4) to be present per IOM; connect the missing links or lower the policy to '2 Link' and re-acknowledge the chassis

Answer

Port Channel mode is unsupported on the 2408 IOM; change the link grouping preference to 'None' and blades will discover automatically

Answer

Blade discovery is blocked because the server ports were configured as appliance ports; reconfigure them as uplink ports

Answer

The blades require a host firmware package before discovery; assign a service profile with the correct firmware policy to force discovery