HP StorageWorks Edge Switch 2/12, Service Manual

Page: 55 / 176

Diagnostics
55 Edge Switch 2/12 Service Manual
3
Is fault isolation being performed at the switch?
YES NO
↓
Fault isolation is being performed at the EWS interface. Go to
step 12 .
4
Ensure the switch reporting the problem is connected to facility AC power.
Inspect the switch for indications of being powered on, such as:
■
At the front bezel, an illuminated PWR LED (green) or ERR LED (amber).
■
Illuminated LEDs adjacent to Fibre Channel ports.
■
Audio emanations and airflow from cooling fans.
Does the switch appear powered on?
YES NO
↓
An AC power distribution or CTP card failure is indicated. Go to
“ MAP 0000: Start MAP ” on page 32. If this is the second time at this
step, replace the switch. Exit MAP.
5
Inspect cooling fans at the rear of the switch to ensure all fan blades are rotating.
Does cooling fan inspection indicate a failure (one or more cooling fans not
rotating)?
YES NO
↓
Go to step 7 .
440 Embedded port hardware failed. Go to step 11 .
810 High temperature warning (CTP thermal
sensor).
Go to step 10 .
811 Critically hot temperature warning (CTP
thermal sensor).
Go to step 10 .
Table 7: MAP 400 Event Codes (Continued)
Event
Code Explanation Action