D-Link ShareCenter DNS-320L User Manual page 76

Section 4 - Configuration
Step 6 - A warning message will appear prompting you to
confirm whether you want to format your hard drive. Click Yes
to continue or No to exit.
Click Next to continue.
Note: Only the newly inserted hard drives will be formatted.
The data stored in the original hard drive will not be formatted.
Step 7 - The software communicates with the hardware to
build a list.
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