You can configure virtual hard disks as IDE disks for any guest operating system. You can also set up a virtual hard disk as a SCSI disk for any guest operating system that has a driver for the LSI Logic or BusLogic SCSI adapter. You determine which SCSI adapter to use when you create a virtual machine.

The files that make up an IDE or SCSI virtual hard disk can be stored on an IDE hard disk or on a SCSI hard disk. They can also be stored on other types of fast-access storage media.

To use SCSI hard disks in a 32-bit Windows XP virtual machine, you must download a special SCSI driver from the VMware Web site. Follow the instructions on the Web site to use the driver with a fresh installation of Windows XP.