See :term:`pool`.
RADOS
+ **R**\eliable **A**\utonomic **D**\istributed **O**\bject
+ **S**\tore. RADOS is the object store that provides a scalable
+ service for variably-sized objects. The RADOS object store is
+ the core component of a Ceph cluster. `This blog post from
+ 2009
+ <https://ceph.io/en/news/blog/2009/the-rados-distributed-object-store/>`_
+ provides a beginner's introduction to RADOS. Readers interested
+ in a deeper understanding of RADOS are directed to `RADOS: A
+ Scalable, Reliable Storage Service for Petabyte-scale Storage
+ Clusters <https://ceph.io/assets/pdfs/weil-rados-pdsw07.pdf>`_.
+
RADOS Cluster
RADOS Gateway
RBD
Reliable Autonomic Distributed Object Store
The core set of storage software which stores the user's data
- (MON+OSD).
+ (MON+OSD). See also :term:`RADOS`.
RGW
The S3/Swift gateway component of Ceph.