[dev   9,   1] /dev/md1         5D39138F.4F5B7F2F.22B42D61.12EC18EB online
[dev   8,   4] /dev/sda4        5D39138F.4F5B7F2F.22B42D61.12EC18EB good
[dev   8,  19] /dev/sdb3        5D39138F.4F5B7F2F.22B42D61.12EC18EB good
[dev   8,  35] /dev/sdc3        5D39138F.4F5B7F2F.22B42D61.12EC18EB good
[dev   8,  51] /dev/sdd3        5D39138F.4F5B7F2F.22B42D61.12EC18EB spare