32. 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. The service assistant retains a copy of the same
information that was on the faulty enclosure midplane assembly. 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 245.
33. Use the Configure enclosure panel.
34. Use the node copy data that you recorded in step 2 on page 354 to update
each of these values: Update WWNN 1, Update WWNN 2, Update the
machine type and model, and Update the serial number.
Attention: Do not update the system ID.
If you were not able to record the values, use the node copy values only if
none of them have all zeros as their value. If any of the node copy values are
all zeros, 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.
Important: Step 35 writes the enclosure identity into the replacement
midplane. The replacement midplane cannot be used as a replacement part for
a different enclosure after step 35 is completed.
35. In the Enclosure Information panel, click Modify. The node canisters restart.
When the restart finishes, the system comes online with both node canisters
online.
Note: In some situations, 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 271. To restart a node from the service assistant, complete the following
steps:
a. Log on to the service assistant.
b. From the home page, select the node that you want to restart from the
Changed Node List.
c. Select Actions > Restart.
The system starts and can handle I/O requests from any host systems.
36. Power up the file modules. See “Turning on the system”.
37. Use the management GUI to check the status of all volumes and physical
storage to ensure that everything is online.
38. Go to Monitoring > Events to check the event log for other events or errors.
39. Restart the host application and any FlashCopy activities, Global Mirror
activities, or Metro Mirror activities that were stopped.
Replacing a Storwize V7000 Gen2 expansion enclosure midplane
assembly
A trained service provider can use this procedure to replace a faulty Storwize
V7000 Gen2 expansion enclosure midplane assembly with a new one received from
CRU / FRU stock.
358 Storwize V7000 Unified: Problem Determination Guide 2073-720
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