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Backups of Backups (lemmy.today)

submitted 7 months ago by loopy@lemmy.today to c/selfhosted@lemmy.world

37 comments fedilink hide all child comments

Hi all, I'm just getting my feet wet in self hosting and have a plan to start with Nextcloud on a Pi 4 for photo backups, and then try other things for calendar, phone backups, media hosting, etc.

One thing I worry about is losing my data. I have heard "if it's not backed up in two locations, it's not backed up." I'm curious what all of you do for backing up the setup. Remote backup to hard drives in the garage? Pay for cloud backup and encrypt it? Just another backup site over wifi in the house?

I'd be most afraid of losing photos and if there were a house fire or something. So my inital thought was a way of backing up to a server in my detached garage in a weather resistent container, but I want to know what you all think. Thanks for any insight.

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[–] Cyber@feddit.uk 7 points 7 months ago

I see lots of solutions here, but some explanation of the basics are missing for someone starting out... this is not meant to sound preachy...

RAID is not a backup. It's just better hardware fault tolerance. Delete does the same thing on RAID as it does one 1 drive.

Everyone syncs / copies / duplicates files somewhere, but you need a way of finding the previous backup in case something was deleted. This can be done with various ways / tech, but the point is - have some history not just 1 copy. Many pointers to 3-2-1 in here, but that also doesn't mean 3 copies of just today's data...

Backups are nothing without Restores. Test the backups. Various ways, but do it. Often.

And consider what you're backing up and why.. ie just your data? (Ie photos), or all the config files, databases, operating systems, etc to do a full restore on new metal. If the latter, I recommend keeping your data separate from the OS / config files, etc.

Source: decades of tech disasters 😁