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36 lines
2.1 KiB
XML
36 lines
2.1 KiB
XML
<?xml version='1.0' encoding='utf-8' ?>
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<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
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%BOOK_ENTITIES;
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]>
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<!-- Licensed to the Apache Software Foundation (ASF) under one
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or more contributor license agreements. See the NOTICE file
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distributed with this work for additional information
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regarding copyright ownership. The ASF licenses this file
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to you under the Apache License, Version 2.0 (the
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"License"); you may not use this file except in compliance
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with the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing,
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software distributed under the License is distributed on an
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"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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KIND, either express or implied. See the License for the
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specific language governing permissions and limitations
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under the License.
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-->
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<section id="automatic-snapshot-creation-retention">
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<title>Automatic Snapshot Creation and Retention</title>
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<para>(Supported for the following hypervisors: <emphasis role="bold">XenServer</emphasis>,
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<emphasis role="bold">VMware vSphere</emphasis>, and <emphasis role="bold"
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>KVM</emphasis>)</para>
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<para>Users can set up a recurring snapshot policy to automatically create multiple snapshots of a
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disk at regular intervals. Snapshots can be created on an hourly, daily, weekly, or monthly
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interval. One snapshot policy can be set up per disk volume. For example, a user can set up a
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daily snapshot at 02:30.</para>
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<para>With each snapshot schedule, users can also specify the number of scheduled snapshots to be
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retained. Older snapshots that exceed the retention limit are automatically deleted. This
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user-defined limit must be equal to or lower than the global limit set by the &PRODUCT;
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administrator. See <xref linkend="globally-configured-limits"/>. The limit applies only to those
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snapshots that are taken as part of an automatic recurring snapshot policy. Additional manual
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snapshots can be created and retained.</para>
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</section> |