D-Link DNS-327L User Manual page 399

Section 4 - Configuration
Click the Camera checkbox, next to the camera's name, to activate the
camera you want to use as backup.
Click Save Settings to finish.
The archive table at the bottom populates as you collect data.
A message pops up to confirm the configuration. Click Yes to continue
and the DNS-327L starts to backup the IP camera recordings.
DNS-327L 394
D-Link ShareCenter User Manual