doc: Added new quick start preamble and index.

Signed-off-by: John Wilkins <john.wilkins@inktank.com>

diff --git a/doc/start/index.rst b/doc/start/index.rst
index 03cc3b1781b6dfc6586a7c94e54f3a52b5072309..1ce80b7282706176826f5d0ccdf5e8074ec162d4 100644 (file)
--- a/doc/start/index.rst
+++ b/doc/start/index.rst
@@ -2,14 +2,73 @@
  Getting Started
 =================
 
-Welcome to Ceph! The following sections provide information that will help you
-get started:
+Whether you want to provide RESTful object services and/or block devices to a
+cloud solution, deploy a CephFS filesystem or use Ceph for another purpose, all
+Ceph clusters begin with setting up your host computers, network and the Ceph
+Object Store. A Ceph object store cluster has three essential daemons:
+
+.. ditaa::  +---------------+ +---------------+ +---------------+
+            |      OSDs     | |    Monitor    | |      MDS      |
+            +---------------+ +---------------+ +---------------+
+
+- **OSDs**: Object Storage Daemons (OSDs) store data, handle data replication, 
+  recovery, backfilling, rebalancing, and provide some monitoring information
+  to Ceph monitors by checking other OSDs for a heartbeat.
+  
+- **Monitors**: Ceph monitors maintain maps of the cluster state, including 
+  the monitor map, the OSD map, the Placement Group (PG) map, and the CRUSH 
+  map. Ceph maintains a history (called an "epoch") of each state change in 
+  the monitors, OSDs, or PGs.
+
+- **MDSs**: Metadata Servers (MDSs) store metadata on behalf of the CephFS
+  filesystem (i.e., Ceph block devices and Ceph gateways do not use MDS).
+  Ceph MDS servers make it feasible for POSIX file system users to execute
+  basic commands like ``ls``, ``find``, etc. without placing an enormous
+  burden on the object store.
+
+
+.. raw:: html
+
+       <style type="text/css">div.body h3{margin:5px 0px 0px 0px;}</style>
+       <table cellpadding="10"><colgroup><col width="25%"><col width="25%"><col width="25%"><col width="25%"></colgroup><tbody valign="top"><tr><td><h3>Step 1: Preflight</h3>
 
 .. toctree::
 
-   5-minute Quick Start <quick-start>
+   Get Involved <get-involved>
+   Preflight <quick-start-preflight>
+
+.. raw:: html 
+
+       </td><td><h3>Step 2: Object Store</h3>
+
+.. toctree::
+
+       Object Store Quick Start <quick-ceph-deploy>
+
+
+.. raw:: html 
+
+       </td><td><h3>Step 3: Ceph Client(s)</h3>
+
+.. toctree::
+       
    Block Device Quick Start <quick-rbd>
    CephFS Quick Start <quick-cephfs>
    Gateway Quick Start <quick-rgw>
-   Get Involved <get-involved>
-   manual-install
+
+
+.. raw:: html 
+
+       </td><td><h3>Step 4: Expand Your Cluster</h3>
+       
+       <placeholder>
+
+.. raw:: html
+
+       </td></tr></tbody></table>
+
+
+
+.. toctree::
+
+