Linux Software raid - 3x 980 pro

I Combined 3 x nvme Samsung 980 pro on my Workstation based on ASUS Pro WS WRX80E-SAGE SE. The result is 17Gigabyte/Sec read speed.

Boot using ubuntu 22.10 LIVE and run the script below to create the following 3 partitions:

/dev/nvme0n1p1 EFI

/dev/md0 Linux swap

/dev/md1 Linux OS

Reboot and run the Ubuntu 22.10 live installer and  install on the partitions you just prepared , voila you done !

Run the following command to text max Bytes/sec readspeed.

fio --name TEST --eta-newline=5s --filename=fio-tempfile.dat --rw=read --size=500m --io_size=10g --blocksize=1024k --ioengine=libaio --fsync=10000 --iodepth=32 --direct=1 --numjobs=1 --runtime=60 --group_reporting

Gives the out

Run status group 0 (all jobs):
   READ: bw=17.9GiB/s (19.2GB/s), 17.9GiB/s-17.9GiB/s (19.2GB/s-19.2GB/s), io=10.0GiB (10.7GB), run=560-560msec

Script below can also be found in https://github.com/Ignalina/linux-software-raid

# Creds to  Saša Stamenković umpirsky https://gist.github.com/umpirsky
# Creds to  Steve Sybesma https://gist.github.com/ssybesma
# Script below is totally based on above mentioned users work. 
# Some cleanup has been added by rickard@ignalina.dk
#
#
# Note: Disks called nvme0 , nvme1,nvme2
#
# Boot using ubuntu 22.10 LIVE and run the script as root. 
# Three Partions will be created 
#  
# /dev/nvme0n1p1 EFI
# /dev/md0 Linux swap
# /dev/md1 Linux OS
# reboot and run the Ubuntu 22.10 live installer and  use the partitions , voila you done !


apt-get -y install mdadm
apt-get -y install grub-efi-amd64
sgdisk -z /dev/nvme0n1
sgdisk -z /dev/nvme1n1
sgdisk -z /dev/nvme2n1
sgdisk -n 1:0:+40M -t 1:ef00 -c 1:"EFI System" /dev/nvme0n1
sgdisk -n 2:0:+96G -t 2:fd00 -c 2:"Linux RAID" /dev/nvme0n1
sgdisk -n 3:0:0 -t 3:fd00 -c 3:"Linux RAID" /dev/nvme0n1
sgdisk /dev/nvme0n1 -R /dev/nvme1n1 -G 
sgdisk /dev/nvme0n1 -R /dev/nvme2n1 -G 
sleep 10
mkfs.fat -F 32 /dev/nvme0n1p1
rm -rf /tmp/nvme0*
mkdir /tmp/nvme0n1p1
mount /dev/nvme0n1p1 /tmp/nvme0n1p1
mkdir /tmp/nvme0n1p1/EFI
umount /dev/nvme0n1p1
# dmsetup table , and dmsetup remove X for prev existing like LVM
mdadm --manage /dev/md0 --stop
mdadm --manage /dev/md1 --stop
mdadm --remove /dev/md0
mdadm --remove /dev/md1
wipefs -a /dev/nvme*n1p1
wipefs -a /dev/nvme*n1p2
wipefs -a /dev/nvme*n1p3

sleep 10
mdadm --create /dev/md0 --force --level=0 --raid-disks=3 /dev/nvme[012]n1p2 
mdadm --create /dev/md1 --force --level=0 --raid-disks=3 /dev/nvme[012]n1p3 
sgdisk -z /dev/md0
sgdisk -z /dev/md1
sgdisk -N 1 -t 1:8200 -c 1:"Linux swap" /dev/md0
sgdisk -N 1 -t 1:8300 -c 1:"Linux filesystem" /dev/md1