libvirt/docs/schemas/storagecommon.rng
Dmitry Guryanov c8a6f844c3 add ploop fs driver type
Ploop is a pseudo device which makeit possible to access
to an image in a file as a block device. Like loop devices,
but with additional features, like snapshots, write tracker
and without double-caching.

It used in PCS for containers and in OpenVZ. You can manage
ploop devices and images with ploop utility
(http://git.openvz.org/?p=ploop).

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2015-01-16 14:07:46 +01:00

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XML

<?xml version="1.0"?>
<!-- A Relax NG schema for common libvirt XML storage elements -->
<grammar xmlns="http://relaxng.org/ns/structure/1.0"
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
<!-- This schema is not designed for standalone use; another file
must include both this file and basictypes.rng -->
<define name='encryption'>
<element name='encryption'>
<attribute name='format'>
<choice>
<value>default</value>
<value>qcow</value>
</choice>
</attribute>
<zeroOrMore>
<ref name='secret'/>
</zeroOrMore>
</element>
</define>
<define name='secret'>
<element name='secret'>
<attribute name='type'>
<choice>
<value>passphrase</value>
</choice>
</attribute>
<attribute name='uuid'>
<ref name="UUID"/>
</attribute>
</element>
</define>
<define name='compat'>
<element name='compat'>
<data type='string'>
<param name='pattern'>[0-9]+\.[0-9]+</param>
</data>
</element>
</define>
<define name='fileFormatFeatures'>
<element name='features'>
<interleave>
<optional>
<element name='lazy_refcounts'>
<empty/>
</element>
</optional>
</interleave>
</element>
</define>
<!-- split the list of known storage formats into two, those where
we know how to follow backing chains, and all others -->
<define name='storageFormatBacking'>
<choice>
<value>cow</value>
<value>qcow</value>
<value>qcow2</value>
<value>qed</value>
<value>vmdk</value>
</choice>
</define>
<define name='storageFormat'>
<choice>
<value>raw</value>
<value>dir</value>
<value>bochs</value>
<value>cloop</value>
<value>dmg</value>
<value>iso</value>
<value>vpc</value>
<value>vdi</value>
<value>fat</value>
<value>vhd</value>
<value>ploop</value>
<ref name='storageFormatBacking'/>
</choice>
</define>
<define name='storageStartupPolicy'>
<!-- Use a combine='choice' override in client files that want to
add additional attributes to a <source> sub-element
associated with a storage source -->
<notAllowed/>
</define>
<define name='storageSourceExtra'>
<!-- Use a combine='choice' override in client files that want to
add additional elements as siblings of a <source> sub-element
associated with a storage source -->
<notAllowed/>
</define>
<define name='permissions'>
<optional>
<element name='permissions'>
<interleave>
<element name='mode'>
<ref name='octalMode'/>
</element>
<element name='owner'>
<choice>
<ref name='unsignedInt'/>
<value>-1</value>
</choice>
</element>
<element name='group'>
<choice>
<ref name='unsignedInt'/>
<value>-1</value>
</choice>
</element>
<optional>
<element name='label'>
<text/>
</element>
</optional>
</interleave>
</element>
</optional>
</define>
</grammar>