How to mount a ceph datastore on a new node

I added a new node to our open nebular cluster. Within Sunstone all looks fine. We have within our cluster 6 shares which are mounted on all nodes. 3 of them are NFS and 3 ceph. The 3 NFS shared started fine on the new node but the ceph shares do no get mounted. Commands like “ceph status” do work fine on this node. I can see all the pools as well.

How can I tell Open Nebula that it mounts the ceph datastores on this new node? It looks like I am missing something trivial but I don’t know what.