[temp2022account]

Seconded, I have an external 2tb HDD that stores 1 years worth of daily backups from my 256gb (~180gb used at any time) laptop hard drive. My backup script (https://gist.github.com/Jeffrey-P-McAteer/7d4b9052825914b5e0...) takes maybe 30 minutes for a full backup, 5 minutes for most deltas. Files which are the same get hard-linked to the previous days backups, new files are copied over and content-de-duped by btrfs.

[0cf8612b2e1e]

If nothing else, external hard drives are cheap and robust enough that I think more people should invest in having an offsite backup. Annually make a full backup, write the date on the outside, and leave it at the parents house. Make that your family holiday ritual.

[gattr]

As of recently, my setup for backups consists of 2x4 TB HDDs (from different manufacturers) with BTRFS in RAID 1, plugged into a small 2-drive USB3 docking station. With both checksumming and mirroring, feels pretty safe from HW-failure/bit rot standpoint (if one disk fails, you can still mount the other in "degraded" mode).