Brocade Communications Systems DCX Backbone Hardware Installation Manual page 109

NOTE
Be aware that if replacing both WWN cards, the IP addresses on the new WWN cards will be in effect when the chassis powers
up. If these IP addresses are different from the previous cards, then you will not be able to establish ssh or other sessions that
use the previous IP addresses. You can change IP addresses on the new cards using the ipaddrset command.
1. Unpack the replacement WWN card(s) and save the packaging for the faulty WWN card(s).
The WWN cards and cables are labeled #1 for the left slot and #2 for the right slot.
2. Power down the chassis and remove the defective WWN card(s) following appropriate steps under
and WWN bezel (logo plate)
NOTE
There are two WWN cards located beneath the WWN bezel (logo plate). As you are facing the bezel, WWN 1 is located
on the left side, and WWN 2 is on the right.
3. 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.
4. Power on the chassis and wait for five minutes for the chassis to boot.
5. Verify that the new WWN card is correctly connected by noting if the LEDs on the card reflects the status of the components.
NOTE
The LEDs may take up to two minutes after WWN card installation to begin functioning.
6. Resolve any issues flagged by RASlog EM-1220 and EM-1222 messages that display for the new card(s) before proceeding.
NOTE
Issues relating to data recovery on new WWN cards must be resolved at this point before proceeding to avoid invalid
WWN data, errors, and operating problems.
7. Determine the active CP by entering the haShow command.
8. On the active CP, run the wwnrecover command and specify WWN 2 card for recovery when prompted in wwnrecover output
messages. Refer to
9. If wwnrecovermessages prompt for a system reboot, reboot both CPs to ensure the system is running with valid WWN card
data.
10. Verify the new card settings by running the following commands and comparing the output with the original supportsave data:
• licenseidshow
• ipaddrshow
• switchname
• chassisname
• wwncardshow ipdata
• chassisshow (look at the WWN and Chassis information at the bottom)
11. Run the switchcfgpersistentenable command to persistently enable each logical switch, that was disabled before removing the
WWN card(s):
switch:FID128:root> switchcfgpersistentenable
Switch's persistent state set to 'enabled'
12. Install the WWN bezel on the chassis.
a) Orient the bezel on the chassis.
b) Insert and tighten the screws.
Brocade DCX Backbone Hardware Installation Guide
53-1000685-24
on page 110.
Using wwnrecover on page 106 for more information on this command.
WWN card removal and replacement
Removing the WWN card
109