mdadm kernel panic if trying to change --layout on a RAID10
It is already known this is not possible
mdadm --create /dev/md3 --level 10 --layout=f2 --raid-devices=2 /dev/sdc1 /dev/sdd1
mdadm: /dev/sdc1 appears to be part of a raid array:
level=raid10 devices=2 ctime=Sat Dec 24 18:44:29 2016
mdadm: /dev/sdd1 appears to be part of a raid array:
level=raid10 devices=2 ctime=Sat Dec 24 18:44:29 2016
Continue creating array? y
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md3 started.
[root@node ~]# mount/
[root@node ~]# mkdir /mnt/md3
[root@node ~]# mount /dev/md3 /mnt
Tags:
mdadm, kernel, layout, raid, dev, md, devices, sdc, sdd, array, ctime, dec, creating, defaulting, metadata, node, mount, mkdir, mnt,