>What happened?
I was listening to the music and suddenly heard a "PSSHH". Went to investigate and found that my array developed a case of silent corruption, probably courtesy of mdadm's new "--replace --with" functionality which does not verify the data it's getting from the failing drive matches the stripe checksum.
>Why don't you use the torrent to check?
Obviously, that was the first thing I did. However, file replacements and directory moves/renames over time mean I can't verify everything on full auto.
>Why don't you just download the torrent?
The impact on my copy of TLMC so far is 9 damaged files; downloading several terabytes to verify that's all there is seems like a useless waste of bandwidth.
Edited on 2025-08-11: now I only need v.19 music.
Edited on 2025-08-15: No more hashes needed for now.
Just in case you're wondering where I ended up: I'm running raid6check and it found a bunch of mismatches, all of which so far point to a single drive. The array is likely repairable without any data loss.
>Running?
~25 MB/s speed doesn't seem so bad until you realize that's 1 million seconds (11.6 days) for every 25 TB checked. Users complained to maintainers before, no one cared, business as usual.