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Joined 3 years ago
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Cake day: 10 August 2023

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  • I’ve been using a raid1 btrfs pool to store offline backups for around 10 years. It’s 4 rotating drives (2x4TB+2x12TB). I replaced / rebalanced 3 disks with larger / newer ones already (went fine). I identified a bad usb/sata controller, and lots of bitrots on one old disk (scrub was able to correct a few thousands errors).

    I’m getting around 80MB/s read/write throughput (not great but OK for offline backup). I’m able to mount it on low-powered / low-memory devices (not the case for ZFS). Scrub takes around 2 days IIRC (for around 10TB of actual data), so I run it once a year.

    I keep it simple and thus am not using advanced features (dedup / encryption / snapshots / subvolumes / raid5/6/10). So far its a good match for my needs.