NFS vvol Containers



In testing some vvol tasks with NFS, I noticed that once the storage container is created and any VM's or vsphere-HA items are moved to it, the root of the container shows these links and was curious if anyone knew what these links referenced? Does the "rdf.xxxx" relate to anything specific?




Is this relating to the PE somehow and maybe I am just not drawing the correlation?


thanks for any insight.