.
.
.
.
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='writeback' io='threads' discard='unmap'/>
<source file='/apsarapangu/vpaas-env380-1207-upgrade-master-1_sdc.qcow2'/>
<target dev='sdc' bus='scsi'/>
<address type='drive' controller='0' bus='0' target='1' unit='1'/>
</disk>
<disk type='file' device='disk'>
<driver name='qemu' type='qcow2' cache='writeback' io='threads' discard='unmap'/>
<source file='/apsarapangu/vpaas-env380-1207-upgrade-master-1_sdd.qcow2'/>
<target dev='sdd' bus='scsi'/>
<address type='drive' controller='1' bus='0' target='2' unit='2'/>
</disk>
.
.
.
.
<qemu:commandline>
<qemu:arg value='-set'/>
<qemu:arg value='device.scsi0-0-0-1.rotation_rate=1'/>
<qemu:arg value='-enable-kvm'/>
<qemu:arg value='device.scsi1-0-2-2.rotation_rate=1'/>
<qemu:arg value='-enable-kvm'/>
</qemu:commandline>