IBM Storwize V7000 Maintenance Manual page 120

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104
Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide
25. Turn on the power to the enclosure using the switches on the power supply
units.
The node canisters boot up. The fault LEDs are on because the new enclosure
has not been set with the identity of the old enclosure. The node canisters
report that they are in the wrong location.
a. Connect to the service assistant on one of the node canisters to configure
the machine type and model, serial number, and WWNNs that are stored
in the enclosure. If you have replaced a node canister, connect to the
canister that has not been replaced.
You can connect using the previous service address. However, it is not
always possible to maintain this address. If you cannot connect through
the original service address, attempt to connect using the default service
address. If you still cannot access the system, see "Problem: Cannot
connect to the service assistant" on page 43.
b. Use the Configure enclosure panel.
c. Select the options to Update WWNN 1, Update WWNN 2, Update the
machine type and model, and Update the serial number. Do not update
the system ID. Use the node copy data for each of the values. Check that
these values match the values that you recorded in step 1 on page 102.
If you were not able to record the values, use the node copy values only if
none of them have all zeroes as their value. If any of the node copy values
are all zeroes, connect the service assistant to the other node canister and
configure the enclosure there. If you still do not have a full set of values,
contact IBM support.
After you modify the configuration, the node attempts to restart.
Note: There are situations where the canisters restart and report critical
node error 508. If the node canisters fail to become active after they restart
when the enclosure is updated, check their status by using the service
assistant. If both node canisters show critical node error 508, use the
service assistant to restart the nodes. For any other node error, see
"Procedure: Fixing node errors" on page 56. To restart a node from the
service assistant, perform the following steps:
1) Log on to the service assistant.
2) From the home page, select the node that you want to restart from the
Changed Node List.
3) Select Actions > Restart.
d. The system starts and can handle I/O requests from the host systems.
Note: The configuration changes that are described in the following steps
must be performed to ensure that the system is operating correctly. If you
do not perform these steps, the system is unable to report certain errors.
26. Start the management GUI and select Monitoring > System Details. You see
an additional enclosure in the system list because the system has detected the
replacement control enclosure. The original control enclosure is still listed in
its configuration. The original enclosure is listed with its original enclosure ID.
It is offline and managed. The new enclosure has a new enclosure ID. It is
online and unmanaged.
27. Select the original enclosure in the tree view.
Verify that it is offline and managed and that the serial number is correct.