I use PhotoSync on my iPhone to copy the original photos from iCloud to my Mac. Then I have two 5TB LaCie Rugged drives that I just attach to the Mac. Finally,

I use PhotoSync on my iPhone to copy the original photos from iCloud to my Mac. Then I have two 5TB LaCie Rugged drives that I just attach to the Mac. Finally, using ChronoSync to schedule copying contents from the Mac to both drives as mirrors.