/var/lib/one/remotes/datastore/ is in opennebula 3.4.1-4.1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/var/lib/one/remotes/datastore/dummy/
/var/lib/one/remotes/datastore/dummy/cp
/var/lib/one/remotes/datastore/dummy/mkfs
/var/lib/one/remotes/datastore/dummy/rm
/var/lib/one/remotes/datastore/fs/
/var/lib/one/remotes/datastore/fs/cp
/var/lib/one/remotes/datastore/fs/mkfs
/var/lib/one/remotes/datastore/fs/rm
/var/lib/one/remotes/datastore/iscsi/
/var/lib/one/remotes/datastore/iscsi/cp
/var/lib/one/remotes/datastore/iscsi/iscsi.conf
/var/lib/one/remotes/datastore/iscsi/mkfs
/var/lib/one/remotes/datastore/iscsi/rm
/var/lib/one/remotes/datastore/libfs.sh
/var/lib/one/remotes/datastore/vmware/
/var/lib/one/remotes/datastore/vmware/cp
/var/lib/one/remotes/datastore/vmware/mkfs
/var/lib/one/remotes/datastore/vmware/rm
/var/lib/one/remotes/datastore/xpath.rb