cloudstack/docs/en-US/incremental-snapshots-backup.xml
2012-07-16 15:43:58 -04:00

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<?xml version='1.0' encoding='utf-8' ?>
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<!ENTITY % BOOK_ENTITIES SYSTEM "cloudstack.ent">
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]>
<section id="incremental-snapshots-backup">
<title>Incremental Snapshots and Backup </title>
<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>
<para>CloudPlatform does incremental backups for some hypervisors. When incremental backups are supported, every N backup is a full backup.</para>
<informaltable>
<tgroup cols="4" align="left" colsep="1" rowsep="1">
<thead>
<row>
<entry></entry>
<entry><para>VMware vSphere</para></entry>
<entry><para>Citrix XenServer</para></entry>
<entry><para>KVM</para></entry>
</row>
</thead>
<tbody>
<row>
<entry><para>Support incremental backup</para></entry>
<entry><para>N</para></entry>
<entry><para>Y</para></entry>
<entry><para>N</para></entry>
</row>
</tbody>
</tgroup>
</informaltable>
</section>