Chapter 5. Virtualization: Configuration Options and Settings / 5.11. Virtual Disks
	5.10. Mapping Physical Storage to Virtual Disks		5.12. Migrating Virtual Machines

Virtual Disks

Virtual disks can be based on the following types of physical devices and files. Each type includes an example statement.

A physical disk device, such as a DVD, that is accessible as a device to the host.
```
phy:/dev/cdrom
```
A file that contains a disk image accessible from the file system of the host. Disk images can be encoded as raw, QEMU, or VMware.
```
file:/mnt/disks/sles10sp1.iso 
```
tap:aio:/mnt/disks/sles10sp1.iso specifies a raw disk that might be taken from a different virtualization platform.
```
tap:qcow:/mnt/disks/sles10sp1.iso.qcow
tap:vmdk:/mnt/disks/sles10sp1.iso.vmdk
```
A remote storage device specified using the Internet SCSI (iSCSI) protocol.
```
iscsi:iqn.2001-04.com.acme@0ac47ee2-216e-452a-a341-a12624cd0225
```
A remote storage device specified using a Fibre Channel (NPIV) protocol.
```
npiv:210400e08b80c40f
```