I have a synology NAS where I backup my photos to. What would be the most cost effective way to encrypt and back up this data without having to purchase another NAS and install it at a family member’s house. It would be about 5 TB and would not touch the data unless my NAS completely takes a crap.
The backup service is good, inexpensive and easy to set up, so easy to recommend.
I now use their B2 service with duplicati (available as a docker container, but idk how well it works with Synology). It’s dirt cheap and equally reliable, but requires more setup by the user, and you must follow good practise and do a test restore of some files to make sure it works.
So it’s really a trade-off, depending on what you want to prioritise.
I’m somewhat tempted by B2 but $5/TB/mo feels a bit steep for a NAS.
For me that would be about $100/mo, and for OP that’s $25/mo. It would only take a few months before buying a drive for off site cold backup would be more cost effective.
Considering their personal plan is $7/mo for unlimited TBs, it really invites hobbiests to find workarounds after their first TB. Unless I’m missing something.