ssd's still can become corrupt (bitrot) and can still die. File systems like zfs and btrfs checksum every block to ensure that if they do become corrupt, they

ssd's still can become corrupt (bitrot) and can still die. File systems like zfs and btrfs checksum every block to ensure that if they do become corrupt, they can get repaired. (otherwise, if you had a mirror of disks, and one disk says the value is 0010 and the other says its 0001, wich one is right?) Additionally, the 'raid' concept is not just about speed. Its also about capacity, and how many disks can fail. I might have 48 drives in a single server. I certainly don't want an LVM stripe across all drives and lose data. I also don't want raid1, losing the capacity of 24 of the drives. I want it so that any 3 drives can fail in that system, and I can still recover the data.