You can use an existing disk that is configured with an operating system or other virtual machine data. This choice allows you to freely move the virtual hard drive from virtual machine to virtual machine.


  1. On the Select Existing Disk page of the New Virtual Machine wizard, browse for a virtual disk file, click OK, and click Next.
  2. Accept the default or select a different virtual device node.
    In most cases, you can accept the default device node. For a hard disk, a nondefault device node is useful to control the boot order or to have different SCSI controller types. For example, you might want to boot from an LSI Logic controller and share a data disk with another virtual machine using a BusLogic controller with bus sharing turned on.
  3. (Optional) To change the way disks are affected by snapshots, click Independent and select an option.
    Option Description
    Independent - Persistent

    Disks in persistent mode behave like conventional disks on your physical computer. All data written to a disk in persistent mode are written permanently to the disk.

    Independent - Nonpersistent

    Changes to disks in nonpersistent mode are discarded when you power off or reset the virtual machine. With nonpersistent mode, you can restart the virtual machine with a virtual disk in the same state every time. Changes to the disk are written to and read from a redo log file that is deleted when you power off or reset.

  4. Click Next.
    Your changes are recorded and the Ready to Complete page opens.

What to do next

Review the virtual machine configuration.