IBM SAN32M-2, Installation And Service Manual

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105 Chapter 3: Maintenance analysis procedures
MAP 0100: Power distribution analysis
This MAP describes fault isolation for the product power distribution
system, including defective AC power cords or redundant power
supplies. One or more of the following indicate a failure:
• Failure of the product to power on.
• Event code 200 or 201 observed at the Event Log (EFCM Basic
Edition or Element Manager interface).
1
Ensure the product is connected to facility power. Inspect the product
for indications of being powered on, such as:
• An illuminated PWR LED (green) or ERR LED (amber).
• Illuminated LEDs adjacent to Fibre Channel ports.
• Noise and airflow from cooling fans.
Is the product powered on?
YES NO
↓
A power distribution problem is indicated. Go to step 4 .
2
Table 8 lists event codes, explanations, and MAP steps.
3
As indicated by visual inspection or event code 200 or 201 , one or
both power supplies failed and must be removed and replaced. Refer
to
Field-replaceable unit: Redundant power supply .
• The procedure is concurrent and performed while the product is
operational.
Table 8
MAP 100 event codes
Event
code
Explanation Action
200 Power supply AC voltage failure. Go to step 3 .
201 Power supply DC voltage failure. Go to step 3 .