VM hard drive properties

The VMs virtual hard drives are listed and managed here.

Virtual hard drives can be added and removed by pressing "Manage Drives".

Each VM has a hard disk controller type shown in the advanced settings of the VM.
Each hard drive has a type.

    When a drive is selected on the left, its type is shown under the comments section.

When a drive is added to a VM, you will have the option to change its type to match the VMs controller type.
A VMs controller type is set when the first hard drive is added to it.
Hard drives that are assigned to VMs are shown as green. Unassigned hard drives are brown.

    Adding a hard drive that is currently assigned to another VM will give you the option to either Move or Clone the drive.