+<!ELEMENT storage_type (prop*)>
+<!ATTLIST storage_type id CDATA #REQUIRED>
+<!ATTLIST storage_type model CDATA #REQUIRED>
+<!ATTLIST storage_type size CDATA #REQUIRED>
+<!ATTLIST storage_type content CDATA "">
+
+<!ELEMENT storage (prop*)>
+<!ATTLIST storage id CDATA #REQUIRED>
+<!ATTLIST storage typeId CDATA #REQUIRED>
+<!ATTLIST storage content CDATA "">
+
+<!ELEMENT mount EMPTY>
+<!ATTLIST mount id CDATA #REQUIRED>
+<!ATTLIST mount name CDATA #REQUIRED>
+
+<!ELEMENT mstorage EMPTY>
+<!ATTLIST mstorage typeId CDATA #REQUIRED>
+<!ATTLIST mstorage name CDATA #REQUIRED>
+
+<!ELEMENT host (prop|mount|mstorage)*>