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52 lines
2.2 KiB
XML
52 lines
2.2 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="incremental-snapshots-backup">
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<title>Incremental Snapshots and Backup </title>
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<para>Snapshots are created on primary storage where a disk resides. After a snapshot is created, it is immediately backed up to secondary storage and removed from primary storage for optimal utilization of space on primary storage.</para>
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<para>&PRODUCT; does incremental backups for some hypervisors. When incremental backups are supported, every N backup is a full backup.</para>
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<informaltable>
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<tgroup cols="4" align="left" colsep="1" rowsep="1">
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<thead>
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<row>
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<entry></entry>
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<entry><para>VMware vSphere</para></entry>
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<entry><para>Citrix XenServer</para></entry>
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<entry><para>KVM</para></entry>
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</row>
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</thead>
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<tbody>
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<row>
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<entry><para>Support incremental backup</para></entry>
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<entry><para>N</para></entry>
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<entry><para>Y</para></entry>
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<entry><para>N</para></entry>
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</row>
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</tbody>
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</tgroup>
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</informaltable>
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</section>
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