Hello Paul,
Western Digital My cloud, when you first configure it you will want to use Raid-1 instead of Raid-0 so both disks inside the NAS will be a mirror image. FYI the 16TB will become 8TB when in Raid-1 Just in case one of them dies, you will still have all of your data.
This product even has apps to backup photos from your phone or computer, all while keeping them remotely accessible over the internet from your devices.
Additionally, you can pair this NAS with a cloud backup service such as iDrive. Click here to use Kim’s promo code.