# create a simple raid4 set set -e $mdadm -CfR $md0 -l 4 -n3 $dev0 $dev1 $dev2 $check resync ; $check raid5 sh tests/testdev $md0 2 $mdsize0 64 $mdadm -S $md0 # now with verion-1 superblock $mdadm -CR $md0 -e1 --level=raid4 -n4 $dev0 $dev1 $dev2 $dev3 $check resync; $check raid5 sh tests/testdev $md0 3 $mdsize1 64 $mdadm -S $md0 exit 0