I just purchased a new 1TB hard drive to compliment my existing 1TB hard drive (with files) currently residing in DNS-321 slot 2. I inserted the new drive into slot one without thinking and power up the device. Then when I got into the web UI, it ask me to reformat the drive in slot 2 and configure RAID type. Since I want to run RAID 1, I power down the device and swap the location of the drives. To my horror... my files are now gone missing. So I power down again and went with the original configuration. I leave the new drive out and just set it aside.
When I power back up, the hard drive is blinking but I still have no access to my files. Will I ever see my files again? Is there a way to recover it?
What is the suggested way to add 2nd drive and to configure RAID 1 without loosing my data?
Thanks.