1. Login to your NVR from the web interface.
2. Go to Setup->Storage->RAID
Confirm that all installed hard drives are present.
3. Check each of the hard drives you wish to include in the array.
4. Click, "Create Manually"
5. Click, "OK" on the confirmation message, and wait several minutes.
6. Click, "Refresh" and you should see a single listing for the drives you added to the RAID along with a confirmation message.