Cold-Swap Replacement - IBM SAN512B-6 Installation, Service And User Manual

10. If replacing the second WWN card, repeat the previous steps in this procedure
11. Install the WWN bezel on the chassis.
12. Pack faulty WWN cards in the packaging provided with the replacement

Cold-swap replacement

About this task
Use this procedure When you can interrupt system operation and replace one or
both WWN cards with the system powered down. You can replace one WWN card
or both WWN cards, one at a time, with system power on using steps under
"Hot-swap replacement" on page 153.
Note: Be aware that if replacing both WWN cards, the IP addresses on the new
WWN cards will be in effect when the device 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.
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SAN512B-6 Installation, Service, and User Guide
4. Address any issues flagged by any RASlog EM-1220 and EM-1222 messages
that display for the new card 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. If EM-1220 messages indicate that IP addresses on
installed WWN cards do not match, follow instructions in the message to
recover the IP address so that both cards use the same address.
5. Determine the active CP blade by entering the haShow command.
6. On the active CP blade, run the wwnrecover command and specify the WWN
card that you replaced (WWN 2 or WWN 1) when prompted.
7. If wwnrecover messages prompt for a system reboot, reboot both CP blades to
ensure the system is running with valid WWN card data.
8. Enter the hafailover command to force failover so that the standby CP blade
becomes the active CP blade. This command is necessary so that the correct IP
address for the new card displays for the ipaddrshow command. For more
information on these commands, refer to the Fabric OS Command Reference.
9. Verify the new card settings by running the following commands and
comparing the output with the original supportsave data:
v licenseidshow
v ipaddrshow
v switchname
v chassisname
v wwncardshow ipdata
v chassisshow (look at the WWN and Chassis information at the bottom)
for the other card.
a. Orient the bezel on the chassis.
b. Insert and tighten both screws using a Phillips screwdriver.
cards, and return them to Support for failure analysis (FA).