Under Hyper-V we’ve two kinds of disk controller that you can add to a virtual machine – IDE disks and SCSI disks. A list of differences between these controllers is as follows: IDE: Works on operating systems without integration services installed / available, and can be used to boot a virtual machine. SCSI: Supports hot add / remove of virtual hard disks 2. The type of disk controller that you use in the virtual machine has nothing to do with the type of disk that you are using in your physical computer. SCSI VHDs can be stored on IDE disks, and IDE VHDs can be stored on SCSI disks.
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