Industry pros sweat the possibility that many digital files will eventually become unusable — an archival tragedy reminiscent of the celluloid era.

All you need is to use ZFS or BTRFS locally to prevent master version bitrot and provide failover/redundancy, manually sync that to a separate “offline” HDD periodically, then setup a simple pi with tailscale + HDD at a family member or friends house, and rclone all your data to it (encrypted) as a cron job every night or week. This performs the function of a cloud provider (offsite backup); alternately, just manually sync the offline HDD once a month.

With this approach you’re covered for accidental deletion, hard drive failures, bitrot, ransomware, and fire; possibly many natural disasters, depending how far away the offsite is.

Then you can just keep your most important data E2E encrypted in 1 or 2 cloud storage providers.

Note: zfs/btrfs cannot repair bitrot without redundancy, only detect it. But if redudancy, is repaired automatically (self-healing).

Raid 1/5/6 cannot repair, only detect bitrot, cannot decide which copy good.

@Nithanim@programming.dev
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I have never seen an implementation of e.g. a mirror that gives up on disagreements of both disks. Repairing/redundnancy is what raid is there for.

Edit: maybe old hardware raid does not check?

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