raid0 setup

raid.sh

# note: run as root

devicemount=/mnt
logicalname=/dev/md0

# get instance storage block devices
devices=( $(lsblk -o name,type,size,model,mountpoint | grep -i "NVMe Instance Storage" | awk '{print "/dev/"$1}') )

if [[ "${#devices[@]}" -gt 0 ]] ; then
  mkdir -p "$devicemount"
fi

if [[ "${#devices[@]}" -eq 1 ]] ; then
  mkfs -t xfs "${devices[0]}" > /dev/null
  mount -t xfs "${devices[0]}" "$devicemount"
elif [[ "${#devices[@]}" -gt 1 ]] ; then
  mdadm \
    --create "$logicalname" \
    --level=0 \
    --raid-devices="${#devices[@]}" "${devices[@]}"

  echo "DEVICE ${devices[*]}" > /etc/mdadm.conf
  mdadm --detail --scan >> /etc/mdadm.conf
  mkfs -t xfs "$logicalname" > /dev/null
  mount "$logicalname" "$devicemount"
fi

chmod -R 777 "$devicemount"