Since the default OSD is no longer created under dataDirHostPath,
the most common issue in the 1.0 release is that users don't have OSD
created in the cluster. Now the quickstart doc will guide users to
create a test cluster to get them going with a filestore OSD in
a directory, with clear guidance that this is not expected in production
Signed-off-by: travisn <tnielsen@redhat.com>