2 # create a simple raid5 set
4 mdadm -CfR $md0 -e 0.90 -l 5 -n3 $dev0 $dev1 $dev2
6 testdev $md0 2 $mdsize0 512
9 # now with version-1 superblock
10 mdadm -CR $md0 -e1 --level=raid5 -n4 $dev0 $dev1 $dev2 $dev3
12 testdev $md0 3 $mdsize1 512
15 # now same again with explicit layout
17 for lo in la ra left-symmetric right-symmetric
20 mdadm -CfR $md0 -l 5 -p $lo -n3 $dev0 $dev1 $dev2
21 check resync ; check raid5
22 testdev $md0 2 $mdsize1 512
25 # now with version-1 superblock
26 mdadm -CR $md0 -e1 --level=raid5 --layout $lo -n4 $dev0 $dev1 $dev2 $dev3
27 check recovery ; check raid5
28 testdev $md0 3 $mdsize1 512