IBM Storwize V7000, Troubleshooting And Maintenance Manual

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data from those nodes. This action acknowledges the data loss and puts the
nodes into the required candidate state.
Removing system information for node canisters with error
code 550 or error code 578 using the service assistant
The system recovery procedure works only when all node canisters are in
candidate status. If there are any node canisters that display error code 550 or error
code 578, you must remove their data.
About this task
Before performing this task, ensure that you have read the introductory
information in the overall recover system procedure.
To remove system information from a node canister with an error 550 or 578,
follow this procedure using the service assistant:
Procedure
1. Point your browser to the service IP address of one of the nodes, for example,
https://node_service_ip_address/service/.
If you do not know the IP address or if it has not been configured, you must
assign an IP address using the initialization tool.
2.
Log on to the service assistant.
3. Select Manage System .
4.
Click Remove System Data .
5. Confirm that you want to remove the system data when prompted.
6.
Remove the system data for the other nodes that display a 550 or a 578 error.
All nodes previously in this system must have a node status of
Candidate
and
have no errors listed against them.
7. Resolve any hardware errors until the error condition for all nodes in the
system is
None .
8. Ensure that all nodes in the system display a status of candidate.
Results
When all nodes display a status of candidate and all error conditions are None ,
you can run the recovery procedure.
Performing system recovery using the service assistant
Start recovery when all node canisters that were members of the system are online
and have candidate status. If any nodes display error code
550
or
578
, remove their
system data to place them into candidate status. Do not run the recovery
procedure on different node canisters in the same system.
About this task
All node canisters must be at the original level of code, prior to the system failure.
If any node canisters were modified or replaced, use the service assistant to verify
the levels of code, and where necessary, to upgrade or downgrade the level of
code.
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Storwize V7000: Troubleshooting, Recovery, and Maintenance Guide