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> the safest RAID experience seems to be filesystem on mdadm on dm-integrity on disk partition, so that the RAID and RAID errors are invisible to the filesystem

> the safest RAID experience seems to be filesystem on mdadm on dm-integrity on disk partition, so that the RAID and RAID errors are invisible to the filesystem. I suppose I don't understand this. Why would this be the case?

Arnavion 4y ago
dm-integrity solves the problem of identifying which replica is good and which is bad. mdadm solves the problem of reading from the replica identified as good and fixing / reporting the replica identified as bad. The filesystem doesn't notice or care.
- mustache_kimono 4y ago
  Ahh, so you intend, "If you can't use ZFS/btrfs, use dm-integrity"?
  - Arnavion 4y ago
    No. I don't use ZFS since it's not licensed correctly, so I have no opinion on it. And BTRFS raid is not safe enough for use. So I'm saying "Use filesystem on mdadm on dm-integrity".
    - nix23 4y ago
      >I don't use ZFS since it's not licensed correctly, Oh look a hobby-lawyer!! Please Linus, license your code "correctly" it's called ISC not GPL.
- deleted 4y ago
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