Every virtual machine on Hyper-V supports IDE and SCSI disks, each one having its own set of benefits, limits, and its own configuration.
It is important to identify when they are necessary, what their limitations are, and (most importantly) how to add and manage them, as you will see in the following tasks.
By default, every virtual machine has default IDEs and one SCSI controller that can be used instead of adding new ones. You can use these steps to change the existing controllers as well, rather than adding new ones.
The following steps show how to add and attach IDE and SCSI controllers for virtual machines.