Brocade DCX 8510-4 Backbone Hardware Reference Manual - Manual (Page 84)

Time and items required
Allow approximately 20 minutes to replace the WWN cards. The following items are needed to replace
the WWN cards:
• 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 the need for 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 LEDs on the WWN bezel not reflecting the actual status of the components.
• Power or Status LEDs on WWN card (beneath logo plate) indicate a problem.
• Problems viewing or modifying the data stored on the WWN card.
• Error messages regarding WWN units #1 or #2 from the chassisshow output.
Preparing for the WWN card replacement
If the WWN cards require replacement, complete the following steps. Follow electrostatic discharge
(ESD) precautions.
DANGER
For safety reasons, the ESD wrist strap should contain a series 1 megaohm resistor.
1. Open a Telnet session to the chassis and log in to the active CP as admin. The default password is
"password".
2. Verify that you are logged in to the active CP. Run the haShow command to determine the active
CP.
3. Run the supportSave command on the active CP to capture all settings. These will be used later to
verify the settings have been correctly programmed.
4. Contact Brocade Technical Support for replacement of both WWN cards. Brocade Support will
request the partner or OEM to send two WWN cards from FRU inventory to the nearest Brocade
Support office to be reprogrammed. Brocade Support will require the Supportsave data taken in
the previous step so that the replacement cards can be reprogrammed prior to shipping to the
partner or your site.
NOTE
Do not execute the frureplace command. The command will no longer be functional beginning with
the release of Fabric OS 7.0.0c, but users with earlier versions of the Fabric OS should also not run
the command.
Removing the WWN card and WWN bezel (logo plate)
When both the replacement WWN cards have been received, complete the following steps to remove
the bezel and faulted WWN cards.
Time and items required
84 Brocade DCX 8510-4 Backbone Hardware Reference Manual
53-1002177-07