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c8a6f844c3
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>
127 lines
3.2 KiB
XML
127 lines
3.2 KiB
XML
<?xml version="1.0"?>
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<!-- A Relax NG schema for common libvirt XML storage elements -->
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<grammar xmlns="http://relaxng.org/ns/structure/1.0"
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datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes">
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<!-- This schema is not designed for standalone use; another file
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must include both this file and basictypes.rng -->
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<define name='encryption'>
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<element name='encryption'>
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<attribute name='format'>
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<choice>
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<value>default</value>
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<value>qcow</value>
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</choice>
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</attribute>
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<zeroOrMore>
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<ref name='secret'/>
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</zeroOrMore>
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</element>
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</define>
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<define name='secret'>
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<element name='secret'>
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<attribute name='type'>
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<choice>
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<value>passphrase</value>
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</choice>
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</attribute>
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<attribute name='uuid'>
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<ref name="UUID"/>
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</attribute>
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</element>
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</define>
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<define name='compat'>
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<element name='compat'>
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<data type='string'>
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<param name='pattern'>[0-9]+\.[0-9]+</param>
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</data>
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</element>
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</define>
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<define name='fileFormatFeatures'>
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<element name='features'>
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<interleave>
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<optional>
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<element name='lazy_refcounts'>
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<empty/>
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</element>
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</optional>
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</interleave>
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</element>
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</define>
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<!-- split the list of known storage formats into two, those where
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we know how to follow backing chains, and all others -->
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<define name='storageFormatBacking'>
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<choice>
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<value>cow</value>
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<value>qcow</value>
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<value>qcow2</value>
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<value>qed</value>
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<value>vmdk</value>
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</choice>
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</define>
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<define name='storageFormat'>
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<choice>
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<value>raw</value>
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<value>dir</value>
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<value>bochs</value>
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<value>cloop</value>
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<value>dmg</value>
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<value>iso</value>
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<value>vpc</value>
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<value>vdi</value>
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<value>fat</value>
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<value>vhd</value>
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<value>ploop</value>
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<ref name='storageFormatBacking'/>
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</choice>
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</define>
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<define name='storageStartupPolicy'>
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<!-- Use a combine='choice' override in client files that want to
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add additional attributes to a <source> sub-element
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associated with a storage source -->
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<notAllowed/>
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</define>
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<define name='storageSourceExtra'>
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<!-- Use a combine='choice' override in client files that want to
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add additional elements as siblings of a <source> sub-element
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associated with a storage source -->
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<notAllowed/>
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</define>
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<define name='permissions'>
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<optional>
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<element name='permissions'>
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<interleave>
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<element name='mode'>
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<ref name='octalMode'/>
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</element>
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<element name='owner'>
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<choice>
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<ref name='unsignedInt'/>
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<value>-1</value>
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</choice>
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</element>
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<element name='group'>
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<choice>
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<ref name='unsignedInt'/>
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<value>-1</value>
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</choice>
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</element>
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<optional>
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<element name='label'>
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<text/>
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</element>
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</optional>
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</interleave>
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</element>
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</optional>
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</define>
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</grammar>
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