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PowerConnect B-DCX-4S Backbone Hardware Reference Manual
53-1001808-01
RRP: WWN card
5
Replacing a blower assembly
1. Orient the blower assembly and slide it into the chassis, pushing firmly to ensure that it is
seated.
2. Verify that the power LED displays a green light.
3. Use the screwdriver or your fingers to tighten the captive screws.
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
. Difficulty retrieving or
modifying this data could indicate a WWN card failure.
TABLE 10
Commands identifying the WWN card status
Data
Related commands
WWN values
wwn, chassisShow
Data about the chassis and WWN card
chassisShow
