Fixed grammatical errors found in doc/admin-guide-cloud

Change-Id: Ie7afcadfa1b3b987f856a71441248b5e67af6025

doc/admin-guide-cloud/blockstorage/section_ts_cinder_config.xml

@@ -11,7 +11,7 @@
     <title xml:id="ts_block_config">Troubleshoot the Block Storage
         configuration</title>
     <para>Most Block Storage errors are caused by incorrect volume
-    configurations that result in volume creation failues. To resolve
+    configurations that result in volume creation failures. To resolve
     these failures, review these logs:</para>
     <itemizedlist>
         <listitem><para><systemitem class="service">cinder-api</systemitem>
@@ -128,7 +128,7 @@
                     <literal>state_path</literal>. The result is a
                 file-tree
                     <filename>/var/lib/cinder/volumes/</filename>.</para>
-            <para>While this should all be handled by the installer,
+            <para>While the installer should handle all this,
                 it can go wrong. If you have trouble creating volumes
                 and this directory does not exist you should see an
                 error message in the <systemitem class="service"

doc/admin-guide-cloud/compute/section_compute-configure-service-groups.xml

@@ -57,7 +57,7 @@
                 <literal>192.168.2.3:2181</literal>.</para>
         <para>The following values in the <filename>/etc/nova/nova.conf</filename> file (on every
             node) are required for the <systemitem>ZooKeeper</systemitem> driver:</para>
-<programlisting language="ini"># Driver for the ServiceGroup serice
+<programlisting language="ini"># Driver for the ServiceGroup service
 servicegroup_driver="zk"
 
 [zookeeper]
@@ -82,7 +82,7 @@ address="192.168.2.1:2181,192.168.2.2:2181,192.168.2.3:2181"</programlisting>
             information.</para>
         <para>The following values in the <filename>/etc/nova/nova.conf</filename> file (on every
             node) are required for the <systemitem>memcache</systemitem> driver:</para>
-        <programlisting language="ini"># Driver for the ServiceGroup serice
+        <programlisting language="ini"># Driver for the ServiceGroup service
 servicegroup_driver="mc"
 
 # Memcached servers. Use either a list of memcached servers to use for caching (list value),

doc/admin-guide-cloud/compute/section_compute-networking-nova.xml

@@ -348,7 +348,7 @@ echo 'Extra user data here'</computeroutput></screen>
                 service, so you should not need to modify it.</para>
                 <para>Hosts access the service at <literal>169.254.169.254:80</literal>, and this is
                 translated to <literal>metadata_host:metadata_port</literal> by an iptables rule
-                established by the <systemitem class="service">nova-network</systemitem> servce. In
+                established by the <systemitem class="service">nova-network</systemitem> service. In
                 multi-host mode, you can set <option>metadata_host</option> to
                     <literal>127.0.0.1</literal>.</para>
                 <para>To enable instances to reach the metadata

doc/admin-guide-cloud/compute/section_compute-recover-nodes.xml

@@ -199,7 +199,7 @@
                     </listitem>
                     <listitem>
                         <para>From the cloud controller to the compute node, we also have iptables/
-                        ebtables rules which allow access from the cloud controller to the running
+                        ebtables rules, which allow access from the cloud controller to the running
                         instance.</para>
                     </listitem>
                     <listitem>

doc/admin-guide-cloud/compute/section_compute-system-admin.xml

@@ -34,7 +34,7 @@
                     </listitem>
                     <listitem>
                         <para><systemitem class="service">nova-compute</systemitem>. Responsible for
-                            managing virtual machines. It loads a Service object which exposes the
+                            managing virtual machines. It loads a Service object, which exposes the
                             public methods on ComputeManager through Remote Procedure Call
                             (RPC).</para>
                     </listitem>

doc/admin-guide-cloud/networking/section_networking-adv-config.xml

@@ -393,8 +393,8 @@ external_network_bridge = br-ex-2</computeroutput></screen>
         </section>
         <section xml:id="adv_cfg_l3_metering_agent_driver">
             <title>L3 metering driver</title>
-            <para>A driver which implements the metering abstraction needs to be configured.
+            <para>You must configure any driver that implements the metering abstraction.
-                Currently there is only one implementation which is based on iptables.</para>
+                Currently the only available implementation uses iptables for metering.</para>
             <para><programlisting language="ini">driver = neutron.services.metering.drivers.iptables.iptables_driver.IptablesMeteringDriver</programlisting></para>
         </section>
         <section  xml:id="adv_cfg_l3_metering_service_driver">

doc/admin-guide-cloud/networking/section_networking-multi-dhcp-agents.xml

@@ -179,7 +179,7 @@ export OS_AUTH_URL=http://controlnode:5000/v2.0/</programlisting>
         </procedure>
             <procedure>
                 <title>Manage agents in neutron deployment</title>
-                <para>Every agent which supports these extensions will
+                <para>Every agent that supports these extensions will
                     register itself with the neutron server when it
                     starts up.</para>
                 <step>

doc/admin-guide-cloud/networking/section_networking_adv_features.xml

@@ -10,7 +10,7 @@
     <section xml:id="section_provider_networks">
         <title>Provider networks</title>
         <para>Networks can be categorized as either "tenant networks" or "provider networks". Tenant
-            networks are created by normal users, and details about how they are physically realized
+            networks are created by normal users and details about how they are physically realized
             are hidden from those users. Provider networks are created with administrative
             credentials, specifying the details of how the network is physically realized, usually
             to match some existing network in the data center.</para>
@@ -23,7 +23,7 @@
         <para>The provider extension allows administrators to explicitly manage the relationship
             between Networking virtual networks and underlying physical mechanisms such as VLANs and
             tunnels. When this extension is supported, Networking client users with administrative
-            privileges see additional provider attributes on all virtual networks, and are able to
+            privileges see additional provider attributes on all virtual networks and are able to
             specify these attributes in order to create provider networks.</para>
         <para>The provider extension is supported by the Open vSwitch and Linux Bridge plug-ins.
             Configuration of these plug-ins requires familiarity with this extension.</para>
@@ -74,7 +74,7 @@
                         <td>A virtual network implemented as packets on a specific physical network
                             containing IEEE 802.1Q headers with a specific VID field value. VLAN
                             networks sharing the same physical network are isolated from each other
-                            at L2, and can even have overlapping IP address spaces. Each distinct
+                            at L2 and can even have overlapping IP address spaces. Each distinct
                             physical network supporting VLAN networks is treated as a separate VLAN
                             trunk, with a distinct space of VID values. Valid VID values are 1
                             through 4094.</td>
@@ -150,7 +150,7 @@
                     <tr>
                         <td>provider:physical_network</td>
                         <td>String</td>
-                        <td>If a physical network named "default" has been configured, and if
+                        <td>If a physical network named "default" has been configured and if
                             provider:network_type is <literal>flat</literal> or
                                 <literal>vlan</literal>, then "default" is used.</td>
                         <td>The name of the physical network over which the virtual network is
@@ -230,14 +230,14 @@
         <para>The Networking API provides abstract L2 network segments that are decoupled from the
             technology used to implement the L2 network. Networking includes an API extension that
             provides abstract L3 routers that API users can dynamically provision and configure.
-            These Networking routers can connect multiple L2 Networking networks, and can also
+            These Networking routers can connect multiple L2 Networking networks and can also
             provide a gateway that connects one or more private L2 networks to a shared external
             network. For example, a public network for access to the
             Internet. See the <citetitle>OpenStack Configuration
             Reference</citetitle> for details on common models of
             deploying Networking L3 routers.</para>
         <para>The L3 router provides basic NAT capabilities on gateway ports that uplink the router
-            to external networks. This router SNATs all traffic by default, and supports floating
+            to external networks. This router SNATs all traffic by default and supports floating
             IPs, which creates a static one-to-one mapping from a public IP on the external network
             to a private IP on one of the other subnets attached to the router. This allows a tenant
             to selectively expose VMs on private networks to other hosts on the external network
@@ -432,7 +432,7 @@
                         <td>
                             <screen><prompt>$</prompt> <userinput>neutron router-gateway-set router1 &lt;ext-net-id&gt;</userinput></screen>
                             <para>The router obtains an interface with the gateway_ip address of the
-                                subnet, and this interface is attached to a port on the L2
+                                subnet and this interface is attached to a port on the L2
                                 Networking network associated with the subnet. The router also gets
                                 a gateway interface to the specified external network. This provides
                                 SNAT connectivity to the external network as well as support for
@@ -911,7 +911,7 @@
                         <td>Boolean</td>
                         <td>False</td>
                         <td>When set to True makes this firewall rule visible to tenants other than
-                            its owner, and it can be used in firewall policies not owned by its
+                            its owner and it can be used in firewall policies not owned by its
                             tenant.</td>
                     </tr>
                     <tr>
@@ -1023,7 +1023,7 @@
                         <td>Boolean</td>
                         <td>False</td>
                         <td>When set to True makes this firewall policy visible to tenants other
-                            than its owner, and can be used to associate with firewalls not owned by
+                            than its owner and can be used to associate with firewalls not owned by
                             its tenant.</td>
                     </tr>
                     <tr>
@@ -1363,8 +1363,8 @@
                 <para>Starting with the Havana release, the VMware NSX plug-in provides an
                     asynchronous mechanism for retrieving the operational status for neutron
                     resources from the NSX back-end; this applies to <emphasis>network</emphasis>,
-                        <emphasis>port</emphasis>, and <emphasis>router</emphasis> resources.</para>
+                        <emphasis>port</emphasis> and <emphasis>router</emphasis> resources.</para>
-                <para>The back-end is polled periodically, and the status for every resource is
+                <para>The back-end is polled periodically and the status for every resource is
                     retrieved; then the status in the Networking database is updated only for the
                     resources for which a status change occurred. As operational status is now
                     retrieved asynchronously, performance for <literal>GET</literal> operations is

doc/admin-guide-cloud/networking/section_networking_adv_operational_features.xml

@@ -116,7 +116,7 @@ default_notification_level = INFO
 # host = myhost.com
 # default_publisher_id = $host
 
-# Defined in rpc_notifier for rpc way, can be comma separated values.
+# Defined in rpc_notifier for rpc way, can be comma-separated values.
 # The actual topic names will be %s.%(default_notification_level)s
 notification_topics = notifications</programlisting>
             </section>
@@ -152,7 +152,7 @@ default_notification_level = INFO
 # host = myhost.com
 # default_publisher_id = $host
 
-# Defined in rpc_notifier for rpc way, can be comma separated values.
+# Defined in rpc_notifier for rpc way, can be comma-separated values.
 # The actual topic names will be %s.%(default_notification_level)s
 notification_topics = notifications_one,notifications_two</programlisting>
             </section>

doc/admin-guide-cloud/networking/section_networking_arch.xml

@@ -203,7 +203,7 @@
     </para>
    <formalpara>
         <title>Tenant networks</title>
-    <para>Tenant networks are created by users for connectivity within projects;
+    <para>Users create tenant networks for connectivity within projects;
     they are fully isolated by default and are not shared with other projects.
     Networking supports a range of tenant network types:
     </para>

doc/admin-guide-cloud/networking/section_networking_auth.xml

@@ -62,7 +62,7 @@
             <emphasis role="italic">admin_or_network_owner</emphasis>
         is a rule.</para>
     <para>Policies are triggered by the Networking policy engine
-        whenever one of them matches an Networking API operation or a
+        whenever one of them matches a Networking API operation or a
         specific attribute being used in a given operation. For
         instance the <code>create_subnet</code> policy is triggered
         every time a <code>POST /v2.0/subnets</code> request is sent
@@ -71,13 +71,13 @@
         the <emphasis role="italic">shared</emphasis> attribute is
         explicitly specified (and set to a value different from its
         default) in a <code>POST /v2.0/networks</code> request. It is
-        also worth mentioning that policies can be also related to
+        also worth mentioning that policies can also be related to
         specific API extensions; for instance
-            <code>extension:provider_network:set</code> is be
+            <code>extension:provider_network:set</code> is
         triggered if the attributes defined by the Provider Network
         extensions are specified in an API request.</para>
     <para>An authorization policy can be composed by one or more
-        rules. If more rules are specified, evaluation policy succeeds
+        rules. If more rules are specified then the evaluation policy succeeds
         if any of the rules evaluates successfully; if an API
         operation matches multiple policies, then all the policies
         must evaluate successfully. Also, authorization rules are
@@ -167,8 +167,8 @@
     </calloutlist>
     <para>In some cases, some operations are restricted to
         administrators only. This example shows you how to modify a
-        policy file to permit tenants to define networks and see their
+        policy file to permit tenants to define networks, see their
-        resources and permit administrative users to perform all other
+        resources, and permit administrative users to perform all other
         operations:</para>
     <programlisting language="bash">{
         "admin_or_owner": [["role:admin"], ["tenant_id:%(tenant_id)s"]],