Preparing For Wwn Card Replacement; Hot-Swap Replacement - Broadcom Brocade DCX 8510-4 Backbone Hardware Installation Manual

53-1002177-19 Hardware Installation Guide

Preparing for 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
3. Run the
supportSave
settings have been correctly programmed after WWN replacement.
4. Contact Brocade Technical Support for replacement of WWN cards. Brocade Support will request the partner or OEM
to send WWN cards from FRU inventory to the nearest Brocade Support office to be reprogrammed. Brocade Support
will require the
Supportsave
to shipping to the partner or your site. If Brocade support has determined that both WWN cards need replaced, you
must power-down the chassis, and then replace both WWN cards as a matched pair.
NOTE
Do not execute the
the release of Fabric OS 7.0.0c, but users with earlier versions of the Fabric OS should also not run the
command.

Hot-swap replacement

You may replace one WWN card with the system powered on using the following steps to avoid interruption of system
operation.
Use this procedure if Brocade Customer Support has determined that a WWN card needs replaced and you have
received replacement cards. These procedures require use of the
refer to Using wwnrecover.
You can use this procedure to replace one WWN card at a time while power is on. Follow all steps for one card, and then
repeat the same steps to replace the other card. To replace both WWN cards simultaneously, use procedures under
Power-down replacement.
1. Remove the defective WWN card using procedures under
applicable to hot-swap replacement of WWN cards.
NOTE
Do not use steps in the WWN card and WWN bezel removal procedures to disable logical switches and power down
the chassis.
Removing a WWN card will result in RASlog messages indicating that a WWN card cannot be detected. Since the
system will be in a degraded state, install a WWN card as soon as possible.
2. Install the replacement WWN card into the empty slot.
When replacing cards, hold each card by the edges and insert the WWN cable onto the WWN module until the cables
are fully seated.
3. Install the replacement WWN card into the empty slot.
When replacing cards, hold each card by the edges and slide the card into the chassis. Use the Phillips screwdriver
and the screws to secure the WWN card to the chassis.
Broadcom
command on the active CP to capture all settings. These settings will be referenced to verify the
data taken in the previous step so that the replacement cards can be reprogrammed prior
command. The command will no longer be functional beginning with
frureplace
Brocade DCX 8510-4 Backbone Hardware Installation Guide
command to determine the active CP.
haShow
utility. For more information on this utility,
wwnrecover
Removing the WWN card and WWN bezel (logo plate)
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