create_fast_raid0_xfs.sh

#!/bin/bash
# by h0ffy//JennyLab VX!

function print_status() {
	if [[ "${1}" == "1" ]]; then
		echo -e "[\033[0;32mOK\033[0m]"
	else
		echo -e "[\033[0;31mERROR\033[0m]"
		exit
	fi
}


if [[ "$((UID))" != "0" ]]; then
	echo "[ERROR] Require root privileges"
	exit 0
fi


if [[ "${#}" != "4" ]]; then
	echo ${#}
	echo "${0} <dev or partition> <dev or partition> <mount_point>"
	echo "${0} /dev/sdb /dev/sdc /jenny"
	echo "${0} /dev/sda4 /dev/sdb /jenny"
	exit 0
fi

if [ ! -d "${4}" ]; then
  echo "Directory ${4} no exists."
  printf "Make directory ${4}\t\t\t"
  mkdir $4 && print_status 1 || print_status 0 
fi


printf "Create RAID0 in /dev/md0\t\t\t"
mdadm --create --verbose /dev/md0 --level=0 --raid-devices=2 $1 $2 && print_status 1 || print_status 0

printf "Format RAID0 with optimized XFS\t\t\t"
mkfs.xfs -f \
  -d su=512k,sw=2 \
  -l size=256m,lazy-count=1 \
  -i size=512,maxpct=5 \
  -n size=4096 \
  /dev/md0 && print_status 1 || print_status 0

printf "Save raid to persistence\t\t\t"
mdadm --detail --scan >> /etc/mdadm/mdadm.conf && print_status 1 || print_status 0
printf "Upate initram fs\t\t\t"
update-initramfs -u && print_status 1 || print_status 0

printf "Test mount ${4}\t\t\t"
mount -t xfs -o noatime,nodiratime,logbufs=8,logbsize=256k,allocsize=1m,logbsize=256k,noalign /dev/md0 $4 && print_status 1 || print_status 0 

printf "Umount ${4}\t\t\t"
umount $4 && print_status 1 || print_status 0 

printf "Make fstab...\t\t\t"
UUID=`blkid | grep md0 | awk '{print $2}' | awk -F"=" '{print $2}' | sed 's/"//g'` 
echo "UUID=${UUID} ${4} xfs noatime,nodiratime,logbufs=8,logbsize=256k,allocsize=1m,logbsize=256k,noalign 0 0" | tee -a /etc/fstab 2>&1 1>/dev/null && print_status 1 || print_status 0