I’m particularly interested in low bandwidth solutions. My connection to the internet is pretty rough 20mbps down and 1mbps up with no option to upgrade.
That said, this isn’t limited to low bandwidth solutions.
I’m planning on redoing my entire setup soon to run on Kubernetes followed by expanding the scope of what my server does (Currently plex, a sftp server and local client backups). Before i do that i need a proper offsite backup solution.
Sorry, not a direct answer to your question, but still something you may consider : I don’t, my backups never leave my home network. I have redundancy on several machines, and my “the house is on fire” solution is to have one of those backups on a sd card that I keep in a 3d printed amulet I made and that I keep around my neck. When people ask me what it is, I tell them it’s an amulet that protects me against memory loss, it’s always a good laugh. :) And if that burns in the fire, well, I probably don’t need backups anymore anyway.
I wish I had data that could fit on an SD card - I too don’t have off-site backups mostly due to expense. I have one other friend that is into homelabbing but for us to each backup on each other’s hardware would be ~$2k/each. Probably more on his end because I believe he’s using a consumer NAS without the room for additional expansion whereas I have a 25 bay commercial setup that’s only 1/5 populated at the moment
Tbh my current plan was to just put the data on a hard drive and post it to my parents once a week/month.
Saving on an SD card definitely seems kind of sketch tho. they are notoriously unreliable
The trick with SD cards is to not buy the cheap ones, they are horribly fragile (similarly faulty cheap usb sticks are more and more common, sadly). I’ve been using a 512Gb Sandisk Ultra microSDXC for 2 years, and it’s still rocking. It would not be a problem if it was to fail, anyway : I have several other backup storages, and I update that one daily, so I’ll know immediately when it fails, it’s not like I’ll realize it the day I’ll need it. On the plus side, it’s small enough to fit in a small 3d printed object, so that I can both keep it on myself and keep it hidden, just in case (it’s fully encrypted anyway, but still, better safe than sorry).