RAID setup for EC2 instances with ephemeral instance storage

1-setupRaid.sh

# 8 disk raid 0
# sudo mdadm --create --verbose /dev/md0 --level=0 --name=EPHEMERAL_RAID --raid-devices=8 /dev/xvdb /dev/xvdc /dev/xvdd /dev/xvde /dev/xvdf /dev/xvdg /dev/xvdh /dev/xvdi

2-setupMount.sh

# Create file system
sudo mkfs.ext4 -L EPHEMERAL_RAID /dev/md0

# Create mount point
sudo mkdir -p /mnt/ephraid

# Create mount disks
sudo mount LABEL=EPHEMERAL_RAID /mnt/ephraid

sudo chown ubuntu /mnt/ephraid

3-deleteRaid.sh

sudo mdadm --detail /dev/md0
sudo umount /dev/md0 # umount -l for lazy
sudo mdadm --stop /dev/md0
sudo mdadm --remove /dev/md0

sudo mdadm --zero-superblock /dev/xvdb
sudo mdadm --zero-superblock /dev/xvdc
sudo mdadm --zero-superblock /dev/xvdd
sudo mdadm --zero-superblock /dev/xvde
sudo mdadm --zero-superblock /dev/xvdf
sudo mdadm --zero-superblock /dev/xvdg
sudo mdadm --zero-superblock /dev/xvdh
sudo mdadm --zero-superblock /dev/xvdi