To determine the status of a WWN card:
1. Check the LED indicators on the WWN bezel and verify that they reflect the actual status of the
components. The WWN bezel covers the WWN cards and allows its LEDs to shine through. The
LEDs on the WWN bezel provide a consolidated view of the port, CP, and CR blade status (see
Table 16).
If a blade slot has a filler panel installed, the corresponding LEDs on the WWN card do not light
up.
Table 16 WWN LED patterns
Recommended actionStatusColorLED location/purpose
No action requiredPower is okay.Steady green
Director blade/CP/CR
blade power
Check card.Card is faulty.Steady amber
Director blade/CP/CR
blade status
No action requiredCard is okay.No light (LED is off)
NOTE:
If a status LED on the WWN bezel flashes, the power LED on the WWN bezel also flashes,
for increased visibility.
2. Check the WWN card status using the commands listed in Table 17. Difficulty retrieving or
modifying this data could indicate a WWN card failure.
Table 17 Commands identifying the WWN card status
Using the following commandsTo check the:
wwn, chassisShow
WWN values
chassisShow
Data about the chassis and WWN card
ipAddrShow, ipAddrSet
Ethernet and Fibre Channel IP address information for
the CP blades
historyShow, historyLastShow
History log information
switchName
Name of switch
Replacing DC SAN Director field-replaceable units (FRUs)92
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