Professional Edition Only
Specifies when a volume should be automatically shrunk. The new volume size will be calculated to maintain approximately the selected minimum amount of free space inside the volume.
For example, if the threshold is set to 10 percent, the volume size will be reduced if less than 10-percent of the volume is filled up. It will be reduced to approximately 10 times the amount of used space, so that the volume is about 10-percent full. The volume will never be reduced below the size set when the volume was created or last manually resized.
The auto-shrink feature is useful only to automatically reduce the size of a volume which was previously automatically expanded.
/AUTOSHRINK = NN