I will give a presentation at the next Ceph Meetup in Berlin on the 18th of September. It will be about a exciting project we work on, at Deutsche Telekom, since a while. The goal of this open source project called librmb is to store emails directly in Ceph RADOS instead of using e.g. a NAS system.
For an short abstract checkout out the Meetup description. The Meetup is already full, but there is a waiting list you can subscribe to. The slides from the talk will be available afterwards if you are not able to join. Otherwise see you in Berlin.