<domain type='vmware'> <name>scsi-writethrough</name> <uuid>564d9bef-acd9-b4e0-c8f0-aea8b9103515</uuid> <memory unit='KiB'>4096</memory> <os> <type>hvm</type> </os> <devices> <disk type='file' device='disk'> <driver name='buslogic' cache='writethrough'/> <source file='[datastore] directory/harddisk.vmdk'/> <target dev='sda' bus='scsi'/> </disk> </devices> </domain>