D-Link DNS-327L User Manual page 114

Section 4 - Configuration
Volume Encryption encodes your Volumes to keep it safe from hackers.
Select the Volume you wish to encrypt by clicking in the box next to it.
You can select one Volume or many.
Click Next to continue.
A warning messege appears indicating a slowdown in access speeds.
Click Yes to continue.
DNS-327L 109
D-Link ShareCenter User Manual