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18 lines
1.1 KiB
XML
18 lines
1.1 KiB
XML
<?xml version='1.0' encoding='utf-8' ?>
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<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "file:///C:/Program%20Files%20(x86)/Publican/DocBook_DTD/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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<section id="volume-deletion-garbage-collection">
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<title>Volume Deletion and Garbage Collection</title>
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<para>The deletion of a volume does not delete the snapshots that have been created from the volume</para>
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<para>When a VM is destroyed, data disk volumes that are attached to the VM are not deleted.</para>
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<para>Volumes are permanently destroyed using a garbage collection process. The global configuration variables expunge.delay and expunge.interval determine when the physical deletion of volumes will occur.</para>
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<itemizedlist>
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<listitem><para>expunge.delay: determines how old the volume must be before it is destroyed, in seconds</para></listitem>
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<listitem><para>expunge.interval: determines how often to run the garbage collection check</para></listitem>
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</itemizedlist>
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<para>Administrators should adjust these values depending on site policies around data retention.</para>
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</section>
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