Comment on Incremental backups to optical media: tar, dar, or something else?
suicidaleggroll@lemm.ee 2 days ago
I don’t like the fact that I could delete every copy using only the mouse and keyboard from my main PC. I want something that can’t be ransomwared and that I can’t screw up once created.
Lots of ways to get around that without having to go the route of burning a hundred blu-rays with complicated archive splitting and merging. Just a handful of external HDDs that you “zfs send” to and cycle on some regular schedule would handle that. So buy 3 drives, backup your data to all 3 of them, then unplug 2 and put them somewhere safe (desk at work, friend or family member’s house, etc.). Continue backing up to the one you keep local for the next ~month and then rotate the drives.
To add to this….ive added a layer of protection against accidental deletion and dumb fingering by making each year of my photos archive into a separate zfs dataset. Then each year I set each dataset to read-only and create a new one.
Manual, but effective enough. I also have automatic snapshots against dumb fingering, but this helps against ones I don’t notice before the snapshots expire.
Yeah, you’re probably right. I already bought all the stuff, though. This project is halfway vibes based; something about spinning rust just feels fragile you know?
I’m definitely moving away from the complex archive split & merge solution. fpart can make lists of files that add up to a given size, and fd can find files modified since a given date. Little bit of plumbing and I’ve got incremental backups that show up as plain files & folders on a disk.
czardestructo@lemmy.world 1 day ago
I do this except the offline copies are raspberry pis, they grab an update then turn their network card off and go black for about a month. Randomly they turn on the network card, pull a fresh copy and go black again. Safe from randomware and automatic.
Vorpal@programming.dev 1 day ago
Unless they are in different cities they wouldn’t be safe from a fire, lightning strike, earth quake/flood/tsunami/typhon/hurricane/etc (remove whichever ones are not relevant to where you live).