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29bc4fe646
This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.
A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.
A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.
In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.
<disk type='network'>
...
<source protocol="sheepdog" name="vdi_name">
<host name="localhost" port="7000"/>
</source>
</disk>
To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.
Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
529 lines
11 KiB
XML
529 lines
11 KiB
XML
<?xml version="1.0"?>
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<!-- A Relax NG schema for the libvirt storage pool XML format -->
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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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<include href='basictypes.rng'/>
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<start>
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<ref name='pool'/>
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</start>
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<define name='pool'>
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<element name='pool'>
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<choice>
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<ref name='pooldir'/>
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<ref name='poolfs'/>
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<ref name='poolnetfs'/>
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<ref name='poollogical'/>
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<ref name='pooldisk'/>
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<ref name='pooliscsi'/>
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<ref name='poolscsi'/>
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<ref name='poolmpath'/>
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<ref name='poolrbd'/>
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<ref name='poolsheepdog'/>
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</choice>
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</element>
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</define>
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<define name='pooldir'>
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<attribute name='type'>
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<value>dir</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcedir'/>
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<ref name='target'/>
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</define>
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<define name='poolfs'>
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<attribute name='type'>
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<value>fs</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcefs'/>
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<ref name='target'/>
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</define>
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<define name='poolnetfs'>
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<attribute name='type'>
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<value>netfs</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcenetfs'/>
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<ref name='target'/>
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</define>
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<define name='poollogical'>
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<attribute name='type'>
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<value>logical</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcelogical'/>
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<ref name='target'/>
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</define>
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<define name='pooldisk'>
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<attribute name='type'>
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<value>disk</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcedisk'/>
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<ref name='target'/>
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</define>
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<define name='pooliscsi'>
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<attribute name='type'>
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<value>iscsi</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourceiscsi'/>
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<ref name='target'/>
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</define>
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<define name='poolscsi'>
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<attribute name='type'>
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<value>scsi</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcescsi'/>
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<ref name='target'/>
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</define>
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<define name='poolmpath'>
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<attribute name='type'>
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<value>mpath</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<optional>
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<ref name='sourcempath'/>
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</optional>
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<ref name='target'/>
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</define>
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<define name='poolrbd'>
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<attribute name='type'>
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<value>rbd</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcerbd'/>
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</define>
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<define name='poolsheepdog'>
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<attribute name='type'>
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<value>sheepdog</value>
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</attribute>
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<ref name='commonmetadata'/>
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<ref name='sizing'/>
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<ref name='sourcesheepdog'/>
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</define>
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<define name='sourceinfovendor'>
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<optional>
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<element name='vendor'>
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<attribute name='name'>
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<text/>
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</attribute>
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</element>
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</optional>
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<optional>
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<element name='product'>
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<attribute name='name'>
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<text/>
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</attribute>
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</element>
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</optional>
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</define>
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<define name='commonmetadata'>
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<element name='name'>
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<ref name='name'/>
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</element>
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<optional>
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<element name='uuid'>
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<ref name='UUID'/>
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</element>
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</optional>
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</define>
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<define name='sizing'>
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<optional>
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<element name='capacity'>
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<ref name='scaledInteger'/>
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</element>
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</optional>
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<optional>
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<element name='allocation'>
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<ref name='scaledInteger'/>
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</element>
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</optional>
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<optional>
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<element name='available'>
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<ref name='scaledInteger'/>
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</element>
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</optional>
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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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<element name='mode'>
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<ref name='unsignedInt'/>
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</element>
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<element name='owner'>
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<ref name='unsignedInt'/>
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</element>
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<element name='group'>
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<ref name='unsignedInt'/>
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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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</element>
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</optional>
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</define>
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<define name='target'>
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<element name='target'>
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<optional>
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<element name='path'>
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<ref name='absFilePath'/>
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</element>
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</optional>
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<ref name='permissions'/>
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</element>
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</define>
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<define name='sourceinfohost'>
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<oneOrMore>
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<element name='host'>
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<attribute name='name'>
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<text/>
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</attribute>
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<optional>
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<attribute name='port'>
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<ref name="PortNumber"/>
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</attribute>
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</optional>
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<empty/>
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</element>
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</oneOrMore>
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</define>
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<define name='sourceinfodev'>
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<element name='device'>
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<attribute name='path'>
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<choice>
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<ref name='absFilePath'/>
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<ref name='name'/>
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</choice>
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</attribute>
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<choice>
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<empty/>
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<ref name='devextents'/>
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</choice>
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</element>
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</define>
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<define name='initiatorinfo'>
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<element name='initiator'>
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<element name='iqn'>
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<attribute name='name'>
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<text/>
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</attribute>
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<empty/>
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</element>
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</element>
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</define>
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<define name='devextents'>
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<oneOrMore>
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<element name='freeExtent'>
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<attribute name='start'>
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<ref name='unsignedLong'/>
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</attribute>
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<attribute name='end'>
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<ref name='unsignedLong'/>
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</attribute>
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</element>
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</oneOrMore>
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</define>
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<define name='sourceinfodir'>
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<element name='dir'>
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<attribute name='path'>
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<ref name='absFilePath'/>
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</attribute>
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<empty/>
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</element>
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</define>
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<define name='sourceinfoadapter'>
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<element name='adapter'>
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<attribute name='name'>
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<text/>
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</attribute>
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<empty/>
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</element>
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</define>
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<define name='sourceinfoname'>
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<element name='name'>
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<text/>
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</element>
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</define>
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<define name='sourceinfoauth'>
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<element name='auth'>
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<attribute name='type'>
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<choice>
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<value>chap</value>
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<value>ceph</value>
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</choice>
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</attribute>
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<choice>
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<attribute name='login'>
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<text/>
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</attribute>
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<attribute name='username'>
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<text/>
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</attribute>
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</choice>
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<optional>
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<attribute name='passwd'>
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<text/>
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</attribute>
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</optional>
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<optional>
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<ref name='sourceinfoauthsecret'/>
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</optional>
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</element>
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</define>
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<define name='sourceinfoauthsecret'>
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<element name='secret'>
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<choice>
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<attribute name='uuid'>
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<text/>
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</attribute>
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<attribute name='usage'>
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<text/>
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</attribute>
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</choice>
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</element>
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</define>
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<define name='sourcefmtfs'>
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<optional>
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<element name='format'>
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<attribute name='type'>
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<choice>
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<value>auto</value>
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<value>ext2</value>
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<value>ext3</value>
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<value>ext4</value>
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<value>ufs</value>
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<value>iso9660</value>
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<value>udf</value>
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<value>gfs</value>
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<value>gfs2</value>
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<value>vfat</value>
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<value>hfs+</value>
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<value>xfs</value>
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<value>ocfs2</value>
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</choice>
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</attribute>
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</element>
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</optional>
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</define>
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<define name='sourcefmtnetfs'>
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<optional>
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<element name='format'>
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<attribute name='type'>
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<choice>
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<value>auto</value>
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<value>nfs</value>
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</choice>
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</attribute>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</optional>
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</define>
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<define name='sourcefmtdisk'>
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<optional>
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<element name='format'>
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<attribute name='type'>
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<choice>
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<value>none</value>
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<value>dos</value>
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<value>dvh</value>
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<value>gpt</value>
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<value>mac</value>
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<value>bsd</value>
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<value>pc98</value>
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<value>sun</value>
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<value>lvm2</value>
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</choice>
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</attribute>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</optional>
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</define>
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<define name='sourcefmtlogical'>
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<optional>
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<element name='format'>
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<attribute name='type'>
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<choice>
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<value>auto</value>
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<value>lvm2</value>
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</choice>
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</attribute>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</optional>
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</define>
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<define name='sourcedir'>
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<optional>
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<element name='source'>
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<empty/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</optional>
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</define>
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<define name='sourcefs'>
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<element name='source'>
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<ref name='sourceinfodev'/>
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<ref name='sourcefmtfs'/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourcenetfs'>
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<element name='source'>
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<ref name='sourceinfohost'/>
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<ref name='sourceinfodir'/>
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<ref name='sourcefmtnetfs'/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourcelogical'>
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<element name='source'>
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<oneOrMore>
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<optional>
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<ref name='sourceinfoname'/>
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</optional>
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<optional>
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<ref name='sourceinfodev'/>
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</optional>
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</oneOrMore>
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<ref name='sourcefmtlogical'/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourcedisk'>
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<element name='source'>
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<ref name='sourceinfodev'/>
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<ref name='sourcefmtdisk'/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourceiscsi'>
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<element name='source'>
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<ref name='sourceinfohost'/>
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<ref name='sourceinfodev'/>
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<optional>
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<ref name='initiatorinfo'/>
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</optional>
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<optional>
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<ref name='sourceinfoauth'/>
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</optional>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourcescsi'>
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<element name='source'>
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<ref name='sourceinfoadapter'/>
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<optional>
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<ref name='sourceinfovendor'/>
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</optional>
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</element>
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</define>
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<define name='sourcempath'>
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<element name='source'>
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<empty/>
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</element>
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</define>
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<define name='sourcerbd'>
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<element name='source'>
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<ref name='sourceinfoname'/>
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<ref name='sourceinfohost'/>
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<optional>
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<ref name='sourceinfoauth'/>
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</optional>
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</element>
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</define>
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<define name='sourcesheepdog'>
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<element name='source'>
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<ref name='sourceinfohost'/>
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<ref name='sourceinfoname'/>
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</element>
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</define>
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<define name='name'>
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<data type='string'>
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<param name="pattern">[a-zA-Z0-9_\+\-]+</param>
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</data>
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</define>
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<define name="PortNumber">
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<data type="short">
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<param name="minInclusive">-1</param>
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</data>
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</define>
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</grammar>
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