create raid
mdadm \
--verbose \
--create '/dev/md/kiwi-storage-v2' \
--name 'kiwi-storage-v2' \
--level 6 \
--raid-devices 8 \
/dev/sd[c-j]1
query raid
mdadm --query '/dev/md/kiwi-storage-v2'
detail raid
# mdadm --detail --scan > /etc/mdadm.conf
mdadm --query '/dev/md/kiwi-storage-v2'
examine raid
mdadm --examine /dev/sd[c-j]1
resync progress
watch -n1 cat /proc/mdstat
add disk from raid
mdadm --manage '/dev/md/kiwi-storage-v2' --add '/dev/sdc1'
remove disk from raid
mdadm --manage '/dev/md/kiwi-storage-v2' --set-faulty '/dev/sdc1'
reassemple raid
mdadm --assemble --run --update=resync '/dev/md/kiwi-storage-v2' /dev/sd[c-j]1
delete raid
mdadm --stop '/dev/md/kiwi-storage-v2'