There are several ways to manage virtual machine storage. You can export a domain0 physical block device (hard drive or partition) to a guest domain as a virtual block device (VBD). You can also export directly from a partitioned image as a file-backed VBD. Red Hat Virtualization enables LVM and blktap by default during installation. You can also employ standard network protocols such as NFS, CLVM, or iSCSI to provide storage for virtual machines.