In the Riedel Software Manager version 1.1 the following limitations exists:
RSM not preventing Cluster Node name conflicts
When upgrading a single-node to a high-availability cluster or when adding additional nodes to an existing cluster, RSM does not verify if names chosen for the new nodes are already used in the cluster. Re-using a name that is already present in the cluster will lead to a naming conflict and prevent the cluster upgrade to succeed. When upgrading clusters, make sure to use distinct names for the nodes.
Changing IP Addresses of a Cluster installed using FQDN is not supported
When creating a Cluster with FQDNs instead of IP Addresses, the Cluster will still internally use the IP Addresses assigned to the interfaces at the time of the Cluster creation to create required certificates. To change the IP Addresses used for a Cluster after its creation, destroy the cluster and create it again using RSM. If STAGE is deployed to the cluster, take a backup first to restore it on a new Cluster.