matrix
The ability to uninstall a backup role is on the roadmap, but it isn’t implemented yet. You can use the api to delete the existing backups, or delete the snapshots directly on the backup server if you’re confident doing it, then move the backup role to a new server.
Also, as far as we know, you can re-add a decommissioned server with the same IP address if it has been completely removed from the enhance control panel after decommissioning. However, it’s best to confirm this with the Enhance support team first.