<?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.
-->

<chapter id="working-with-usage-data">
    <title>Working With Usage Data</title>
    <para>The Usage Server provides aggregated usage records which you can use to create billing integration for the &PRODUCT; platform. The Usage Server works by taking data from the events log and creating summary usage records that you can access using the listUsageRecords API call.</para>
    <para>The usage records show the amount of resources, such as VM run time or template storage space, consumed by guest instances. In the special case of bare metal instances, no template storage resources are consumed, but records showing zero usage are still included in the Usage Server's output.</para>
    <para>The Usage Server runs at least once per day. It can be configured to run multiple times per day. Its behavior is controlled by configuration settings as described in the &PRODUCT; Administration Guide.</para>
    <xi:include href="usage-record-format.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
    <xi:include href="usage-types.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
    <xi:include href="example-response-from-listUsageRecords.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
    <xi:include href="dates-in-usage-record.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
    <xi:include href="globally-configured-limits.xml" xmlns:xi="http://www.w3.org/2001/XInclude" />
</chapter>