Diagnostics

•The switch-to-HAFM server Ethernet link failed.

•Ac power distribution in the switch failed.

•The control processor (CTP) card failed. Because the CTP card is not a FRU, CTP failure requires replacing the switch.

Does a grey square appear at the alert panel and as the background to the icon representing the switch reporting the problem?

YES NO

↓Go to step 10.

8

At the switch reporting the problem, ensure the power switch is set to the Power On

(1)position. Inspect the switch for indications of being powered on, such as:

• At the front panel, an illuminated PWR or ERR indicator.

• Green LEDs illuminated on the power supplies.

• Audio emanations and airflow from fans.

Does the switch appear powered on?

YES NO

↓A power distribution problem is indicated. Go to step 23 to obtain event codes. If no event codes are found, go to "MAP 0100: Power Distribution Analysis" on page 2-26.

9

Either a switch-to-HAFM server Ethernet link failure or CTP card failure is indicated. Go to step 23 to obtain event codes. If no event codes are found:

a.Fault isolate the least severe failure indicated (Ethernet link problem). Go to "MAP 0400: Loss of Console Communication" on page 2-39.

b.If MAP 400 does not isolate the problem, fault isolate the CTP card problem. Go to "MAP 0200: POST, Reset, or IPL Failure Analysis" on page 2-32.

10

Does a red diamond with yellow background (failure indicator) appear at the alert panel and as the background to the icon representing the switch reporting the problem?

YES NO