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by mappu
1260 days ago
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Btrfs RAID 5 is "fixed" as of kernel 6.2 - see https://www.phoronix.com/news/Linux-6.2-Btrfs-EXT4 Although I'd still suggest single-block-device-btrfs on mdadm instead. The per-file RAID in btrfs (/zfs) can skip over unallocated sectors, but mdadm gets to do larger sequential writes with less random seeking. On spinning disks this can very quickly overtake the performance at even lightly filled volumes. |
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