D-Link DNS-327L User Manual page 143

Section 4 - Configuration
Step 4 - Under Physical Disk Information, you will be able to see the drive
you just installed. It provides the slot location, vendor, model number,
serial number, and disk size.
Just below this informational box is a checkbox that offers you the option
to Reconfigure the drive to RAID 1. Click the checkbox to proceed.
Click Next to continue.
Step 5 - Under Auto-Rebuild Settings, select whether you want to enable
auto rebuild or disable auto rebuild.
Click Next to continue.
DNS-327L 138
D-Link ShareCenter User Manual