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EMC Connectrix B Series v6.2 ED-DCX-4S-B Hardware Reference Manual
Removal and Replacement Procedures (RRPs)
RRP: WWN card
Note: The World Wide Name (WWN) cards contain fully redundant circuits
and normally do not require replacement. Two WWN cards are located
beneath the WWN bezel (logo plate).
Time and items
required
Allow approximately 20 minutes to replace a WWN card. The
following items are needed to replace a WWN card:
◆ Electrostatic discharge (ESD) grounding strap
◆ #2 Phillips screwdriver (required only for some versions of the
WWN card)
◆ If a serial console session is used: serial cable and a workstation
computer with a terminal emulator application (such as
HyperTerminal for Windows systems or TIP for Solaris systems)
Verifying necessity of replacement
Before replacing a WWN card, verify that the replacement is
necessary. Any of the following events can indicate that the card
requires replacement:
◆ Status LED on WWN card (beneath the bezel) indicates a problem
◆ Problems viewing or modifying the data stored on the WWN
card
◆ Error messages regarding WWN units #1 or #2
Note: On the DCX-4S the power and status LEDs for all blades are no longer
present on the WWN card.
Determining the status of a WWN card
1. Check the WWN card status using the commands listed in
Table 10 on page 117. Difficulty retrieving or modifying this data
could indicate a WWN card failure.
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