virtio hard disk?

I saw in the release notes for update 7.0up12.9101.10529 that there was a mention of Virtio so I thought I would try it out since I have been very eager for this feature.
When I boot it and go to Status->Hardware I see:

Controllers Info

• Network controllers
  
  • Red Hat, Inc Virtio network device
• RAID/SCSI controllers
  
  • Red Hat, Inc Virtio block device

Drivers Info

• Network drivers
  
  • Virtio network driver
• RAID/SCSI drivers
  
  • Virtio SCSI HBA driver

However, while the network adapters show up just fine I can not get it to recognize a virtio hard disk.
Is there a trick that I am missing?

Thanks.

from release notes:

KVM drivers for paravirtualized hardware (virtio-net, virtio-scsi)

You may want to open a support case so we can go into the server logs.

I am only testing in a trial version, can I still open a case on it?

check your private messages