Using A Physical Storage Device In A KVM

It is possible to attach a physical storage device directly to a kernel virtual machine but it cannot be done through the virt-manager GUI tool, it has to be handed-coded.

1. Shut down the KVM.
2. Edit the domain configuration XML. This can be done in the virt-manager UI or by directly editing the domain XML file. KVM XML files are located in /etc/libvirt/qemu on Fedora-based systems.
3. Add the following stanza in the <devices> section. Adjust the source and target dev attributes appropriately.

<disk type="block" device="disk">
  <driver name="qemu" type="raw"/>
  <source dev="/dev/sdX"/>
  <target dev="vdX" bus="virtio"/>
</disk>