They use it just as a filesystem, like ext4. The RAID is still the classic Linux RAID because btrfs RAID isn't stable. This means BTRFS isn't able to heal itse

They use it just as a filesystem, like ext4. The RAID is still the classic Linux RAID because btrfs RAID isn't stable. This means BTRFS isn't able to heal itself because there is no copy of the data that BTRFS could use. I built my own NAS so I can just use ZFS with raidz, and when I ever have a silent data corruption the repair is done in a few seconds, not hours.