Persistent Storage Using NFS > https://docs.openshift.org/1.2/install_config/persistent_storage/persistent_storage_nfs.html
Sample > https://help.ubuntu.com/community/SettingUpNFSHowTo
https://docs.openshift.org/1.2/install_config/persistent_storage/persistent_storage_nfs.html
$ oc delete -f nfs-pv.yaml
or
$ oc delete pv pv0001
The access modes are: