You can set a virtual disk to independent mode to exclude the disk from any snapshots taken of its virtual machine.
Power off the virtual machine and delete any existing snapshots before you change the disk mode. Deleting a snapshot involves committing the existing data on the snapshot disk to the parent disk.
- Right-click a virtual machine in the inventory and select Edit Settings.
- On the Virtual Hardware tab, expand Hard disk, and select an independent disk mode option.
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.
- Click OK.