You can select the amount and type of storage for a virtual machine. vCloud Air provides different storage tiers for different storage performance needs. You can select the type of storage for a virtual machine based on the storage tiers that are allocated to the virtual data center.

You can select more than one type of storage for a virtual machine by adding multiple hard disks and selecting the storage type for each.

You can also migrate a virtual machine's hard disks from one storage tier to another.