<i>raid1 on all data. This isn&#x27;t a backup - it&#x27;s for end-to-end detection of bit flips in (some of) the storage path (and at rest). This needs a better solution (zfs?)</i><p>Yeah, btrfs or zfs are the better choice for this than RAID1 in the modern world I think.<p>ZFS anywhere it runs natively, btrfs on Linux.<p>(My experience with btrfs is that it’s fine on a server, but on laptops I’ve ended up with unmountable, unfixable filesystems a number of times. To be fair to btrfs I’ve always been able to recover the data though.)