At the moment the test is skipped on: - azure - bare metal - vsphere see https://github.com/openshift/origin/blob/6438b04e175f9e2ce434b7deb4b786f602eb886b/test/extended/etcd/helpers/helpers.go#L358 we should try to enable the test on those platforms as there are no known issues. I initially disabled them on azure and bare metal because the test seemed to be unstable on those platforms.
*** This bug has been marked as a duplicate of bug 2101788 ***