Linux create MD RAID5 device

Linux MD RAID5 Creation

1. Wipe the current partition table

2. Parted /dev/sda

mklabel gpt

makepart, name p1, type btrfs, min=1MiB, max= -1

set 1 raid on

align-check opt 1

#Repeat for each raid5 member

3. create raid5 from 4 member disks sda, sdb, sdd, sde

mdadm --create --chunk=4 --level=5 --raid-devices=4 --name=arry0 /dev/md0 /dev/sda /dev/sdb /dev/sdd /dev/sde

4. restart PENDING resync

mdadm --readwrite /dev/md0

5. monitor rebuild

cat /proc/mdstat