Google's big enough that it, most likely, has something that the public ceph project is a pale imitation of. Actually, they're big enough that something betwee

Google's big enough that it, most likely, has something that the public ceph project is a pale imitation of. Actually, they're big enough that something between what ceph can do and what backblaze does is probably their /archive/ backend. They probably have all of the fast stuff on 'disposable' temporary copies in RAM or SSDs.