diff --git a/docs/en-US/cloud_infrastructure_overview.xml b/docs/en-US/cloud_infrastructure_overview.xml
deleted file mode 100644
index 6184240ad17..00000000000
--- a/docs/en-US/cloud_infrastructure_overview.xml
+++ /dev/null
@@ -1,38 +0,0 @@
-<!-- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements.  See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership.  The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License.  You may obtain a copy of the License at
- 
-   http://www.apache.org/licenses/LICENSE-2.0
- 
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied.  See the License for the
- specific language governing permissions and limitations
- under the License.
--->
-
-	<section id="cloud_infrastructure_overview">
-		<title>Cloud Infrastructure Overview</title>
-		<para>
-			The Management Server manages one or more zones (typically, datacenters) containing host computers where guest virtual machines will run. The cloud infrastructure is organized as follows:
-		</para>
-		<itemizedlist>
-			<listitem><para>Zone: Typically, a zone is equivalent to a single datacenter. A zone consists of one or more pods and secondary storage. See About Zones.</para></listitem>
-			<listitem><para>Pod: A pod is usually one rack of hardware that includes a layer-2 switch and one or more clusters. See About Pods.</para></listitem>
-			<listitem><para>Cluster: A cluster consists of one or more hosts and primary storage. See About Clusters.</para></listitem>
-			<listitem><para>Host: A single compute node within a cluster. The hosts are where the actual cloud services run in the form of guest virtual machines. See About Hosts.</para></listitem>
-			<listitem><para>Primary storage is associated with a cluster, and it stores the disk volumes for all the VMs running on hosts in that cluster. See About Primary Storage</para></listitem>
-			<listitem><para>Secondary storage is associated with a zone, and it stores templates, ISO images, and disk volume snapshots. See About Secondary Storage.</para></listitem>
-		</itemizedlist>
-		<mediaobject>
-			<imageobject>
-				<imagedata fileref="./images/infrastructure_overview.png" />
-			</imageobject>
-			<textobject><phrase>infrastructure_overview.png: Nested organization of a zone</phrase></textobject>
-		</mediaobject>
-	</section>
diff --git a/docs/en-US/deployment_architecture_overview.xml b/docs/en-US/deployment_architecture_overview.xml
deleted file mode 100644
index 2c5c3b9dbd8..00000000000
--- a/docs/en-US/deployment_architecture_overview.xml
+++ /dev/null
@@ -1,47 +0,0 @@
-<?xml version='1.0' encoding='utf-8' ?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
-<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
-%BOOK_ENTITIES;
-]>
-
-
-<!-- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements.  See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership.  The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License.  You may obtain a copy of the License at
- 
-   http://www.apache.org/licenses/LICENSE-2.0
- 
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied.  See the License for the
- specific language governing permissions and limitations
- under the License.
--->
-
-	<section id="deployment_architecture_overview">
-		<title>Deployment Architecture Overview</title>
-		
-		<para>
-			A &PRODUCT; installation consists of two parts: the Management Server and the cloud infrastructure that it manages. When you set up and manage a &PRODUCT; cloud, you provision resources such as hosts, storage devices, and IP addresses into the Management Server, and the Management Server manages those resources.
-		</para>
-		<para>
-			The minimum installation consists of one machine running the &PRODUCT; Management Server and another machine to act as the cloud infrastructure (in this case, a very simple infrastructure consisting of one host running hypervisor software).
-		</para>
-		<mediaobject>
-			<imageobject>
-				<imagedata fileref="./images/basic_deployment.png" />
-			</imageobject>
-			<textobject><phrase>basic_deployment.png: Basic two-machine &PRODUCT; deployment</phrase></textobject>
-		</mediaobject>
-		<para>A more full-featured installation consists of a highly-available multi-node Management Server installation and up to thousands of hosts using any of several advanced networking setups. For information about deployment options, see Choosing a Deployment Architecture.
-		</para>
-		<xi:include href="management_server_overview.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
-		<xi:include href="cloud_infrastructure_overview.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
-		<xi:include href="networking_overview.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
-	</section>
-