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Expansion Rollback (Except Expansion from 2 to 4, 6 to 8, or 10 to 12 Controllers)
If controllers fail to be expanded, restore the storage system to factory settings and expand the controllers again.
Symptom
SmartKit may fail to expand controllers because:
- The configuration information about controller enclosure (enclosure SN: %s) fails to be modified.
- The BMC information about controller enclosure (enclosure SN: %s) fails to be synchronized.
- Controller expansion fails to be performed.
- The new controller enclosure (enclosure SN: %s) fails to be added to the cluster.
%s indicates the SN of the enclosure.
- When handling controller expansion failure, remove cables of storage systems that have not been added to the cluster to isolate controllers.
- If the original storage system has two, six, or ten controllers, you need to remove the new controllers from the original controller enclosure.
- If New engine (enclosure SN: %s) failed to be added to the cluster is displayed in SmartKit, the controller expansion cannot be rolled back. Contact Huawei technical support.
- For details about how to use the commands mentioned in this chapter, see Advanced O&M Command Reference of the corresponding product model.
- Do not restart the controllers to minimize the impact on cluster services.
- Expansion Rollback (for Expansion from 2 to 4, 6 to 8, or 10 to 12 Controllers) shows the process of handling controller expansion failure for storage systems from 2 to 4, 6 to 8, and 10 to 12 controllers. The other scenarios see Figure 11-86.
