UnderstandingCeph
Before playing with Ceph...
... it's important to understand its basic concepts. They are presented here.
If you prefer slides, this is a very good presentation (it's a bit old, but most of what is said is still valid today).
If you want a good hands-on wiki, explaining howto install Ceph on VMs, follow this [link https://github.com/dianagudu/gks2015-ceph].