Note for storage management of multi-node cluster

a). You can do the storage management (add/edit/remove storage provider) when all management nodes of the multi-node cluster are alive, otherwise it fails to manage the storage (add/edit/remove the storage provider) with the following error message:

Failed to perform ***(register/update-registration/deregister), because not all nodes in the HA cluster is active. Check the cluster's status and retry after the cluster's status is back to normal.

b). If the storage is managed (add/edit/remove) successfully, UI message:

The storage system *** was added to IBM Cloud Infrastructure Center successfully.

is shown on UI Messages page. Then, storage config file /etc/cinder/cinder-<sp>.conf is synchronized on all management nodes.

c). If the config file synchronization fails, UI message:

Failed to perform synchronize task, refer to /var/log/cinder/api.log for details. Please mannually run command icic-manage -o syncconf -c *.*.*.* -f /etc/cinder/cinder-<sp>.conf on ***[*.*.*.*] node.

is shown on UI Messages page, you need to synchronize the storage config file to the other management nodes manually. The following command is an example:

/opt/ibm/icic/bin/icic-manage -o syncconf -c fl63.boeblingen.de.ibm.com -f /etc/cinder/cinder-fl63.conf