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+.. _rados-index:
+
+======================
+ Ceph Storage Cluster
+======================
+
+The :term:`Ceph Storage Cluster` is the foundation for all Ceph deployments.
+Based upon :abbr:`RADOS (Reliable Autonomic Distributed Object Store)`, Ceph
+Storage Clusters consist of two types of daemons: a :term:`Ceph OSD Daemon`
+(OSD) stores data as objects on a storage node; and a :term:`Ceph Monitor` (MON)
+maintains a master copy of the cluster map. A Ceph Storage Cluster may contain
+thousands of storage nodes. A minimal system will have at least one 
+Ceph Monitor and two Ceph OSD Daemons for data replication. 
+
+The Ceph File System, Ceph Object Storage and Ceph Block Devices read data from
+and write data to the Ceph Storage Cluster.
+
+.. raw:: html
+
+	<style type="text/css">div.body h3{margin:5px 0px 0px 0px;}</style>
+	<table cellpadding="10"><colgroup><col width="33%"><col width="33%"><col width="33%"></colgroup><tbody valign="top"><tr><td><h3>Config and Deploy</h3>
+
+Ceph Storage Clusters have a few required settings, but most configuration
+settings have default values. A typical deployment uses a deployment tool 
+to define a cluster and bootstrap a monitor. See `Deployment`_ for details 
+on ``cephadm.``
+
+.. toctree::
+	:maxdepth: 2
+
+	Configuration <configuration/index>
+	Deployment <../cephadm/index>
+
+.. raw:: html 
+
+	</td><td><h3>Operations</h3>
+
+Once you have deployed a Ceph Storage Cluster, you may begin operating 
+your cluster.
+
+.. toctree::
+	:maxdepth: 2
+	
+	
+	Operations <operations/index>
+
+.. toctree::
+	:maxdepth: 1
+
+	Man Pages <man/index>
+
+
+.. toctree:: 
+	:hidden:
+	
+	troubleshooting/index
+
+.. raw:: html 
+
+	</td><td><h3>APIs</h3>
+
+Most Ceph deployments use `Ceph Block Devices`_, `Ceph Object Storage`_ and/or the
+`Ceph File System`_. You  may also develop applications that talk directly to
+the Ceph Storage Cluster.
+
+.. toctree::
+	:maxdepth: 2
+
+	APIs <api/index>
+	
+.. raw:: html
+
+	</td></tr></tbody></table>
+
+.. _Ceph Block Devices: ../rbd/
+.. _Ceph File System: ../cephfs/
+.. _Ceph Object Storage: ../radosgw/
+.. _Deployment: ../cephadm/