RAID setup commands for Ubuntu 16.04LTS

ubuntu_raid.sh

#!/bin/bash

# DO NOT RUN THIS SCRIPT
# THIS IS A LIST OF COMMANDS
# USED TO SET UP DIFFERENT MULTIDISK RAID LEVELS ON UBUNTU LINUX

# inspect devices
# lsblk -o NAME,SIZE,FSTYPE,TYPE,MOUNTPOINT

# raid level 1 // striping
# sudo mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 /dev/sdc /dev/sdd
# did it work?
# cat /proc/mdstat

# zero superblocks/reset
# sudo mdadm --zero-superblock /dev/sdc
# sudo mdadm --zero-superblock /dev/sdd

# add entry to fstab
# sudo cat >> /etc/fstab `/dev/md0 /mnt/md0 ext4 defaults,nofail,discard 0 0`

# create the array with raid level 1
# sudo mdadm --create --verbose /dev/md0 --level=1 --raid-devices=2 /dev/sdc /dev/sdd

# format array
# sudo mkfs.ext4 -F /dev/md0

# create a mount point
# sudo mkdir -p /data

# attach disk to mount point
# sudo mount /dev/md0 /data

# ispect all disks
# df -h -x devtmpfs -x tmpfs

# dump raid config
# sudo mdadm --detail --scan | sudo tee -a /etc/mdadm/mdadm.conf

# update initfs
# sudo update-initramfs -u

# add to fstab
# echo '/dev/md0 /mnt/md0 ext4 defaults,nofail,discard 0 0' | sudo tee -a /etc/fstab