What is causing this behavior?

A volume with a single LUN shows 30% deduplication savings. However, the output of df on the cluster does
not show the 30% savings back to the volume or aggregate.
What is causing this behavior?

A.
Volume space guarantee is set to none.

B.
Volume space guarantee is set to volume.

C.
LUN space reserve is disabled.

D.
LUN space reserve is enabled.

Explanation: