80a14e940e
In preparation for supporting multiple Ceph backends replace is_ceph_volume_configured with has_ceph_backend. has_ceph_backend returns true when at least one backend is using RBDDriver. Change-Id: Iaa67061b05a9d355228ad7d3f5ee0f4f04dbdc66 Signed-off-by: Daniel Badea <daniel.badea@windriver.com>.