How to create highly scalable private cloud NAS with raspberry pi

We can use the idle USB disk drives or HDD drives and Raspberry Pi to create a highly scalable private cloud NAS

Device:

Raspberry pi 3 mode b+

Operating System:

Raspbian  version is Stretch or newer

Step 1:

if your raspbian is not Stretch or newer please upgrade it, otherwise just skip this step

#upgrade from Jessie to Stretch
sudo apt-get update -y
sudo apt-get upgrade -y
sudo apt-get dist-upgrade -y
sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list
sudo sed -i /deb/s/jessie/stretch/g /etc/apt/sources.list.d/*.list
sudo apt-get update -y
sudo apt-get upgrade -y
sudo apt-get dist-upgrade -y

Step 2:

install and start Docker

#install && start docker
sudo apt install wget -y
wget https://download.docker.com/linux/debian/dists/stretch/pool/stable/armhf/docker-ce_18.09.5~3-0~debian-stretch_armhf.deb
wget https://download.docker.com/linux/debian/dists/stretch/pool/stable/armhf/docker-ce-cli_18.09.5~3-0~debian-stretch_armhf.deb
wget https://download.docker.com/linux/debian/dists/stretch/pool/stable/armhf/containerd.io_1.2.5-1_armhf.deb

sudo dpkg -i containerd.io_1.2.5-1_armhf.deb
sudo dpkg -i docker-ce-cli_18.09.5~3-0~debian-stretch_armhf.deb
sudo dpkg -i docker-ce_18.09.5~3-0~debian-stretch_armhf.deb

Step 3:

install lvm2

#install lvm
sudo apt install lvm2 -y

Step 4:

create  Volume(if you insert one disk let us say it is /dev/sda and 4GB capacity)

4GB is a example ,if you have more just change it

#create physical Volumne
sudo pycreate /dev/sda
#crteate vilume group name is data
sudo vgcreate data /dev/sda
# create logic volum
sudo lvcreate -L 4GB data -n owncloud

Step 5:

mount

#mount 
sudo mkdir /mnt/owncloud
sudo mkfs.ext4 /dev/data/owncloud
sudo mkdir /mnt/owncloud
sudo mount /dev/data/owncloud /mnt/owncloud

Step 6:

run

#run
sudo docker run --name owncloud -d -p 8080:80 -v /mnt/owncloud:/var/www/html owncloud
#if you had ran once before
sudo docker start owncloud

Step7:

config(replace RASPBERRY_IP to your Raspberry Pi ip address)

open http:RASPBERRY_IP// :8080 in browser and finish the admin name and password config

after input your admin name and password click   Finish Setup 

Then all finished

Scalability

if you want to add Disk (let us say it is /dev/sdb and  10GB capacity)

#add disk
sudo pycreate /dev/sdb
sudo vgextend data /dev/sdb
sudo vgdisplay data#show how much total and left 
sudo lvresize -r -L +10GB /dev/data/owncloud

then you will see your owncloud data had been add 10GB by `df -h` command

Conclusion:

This is a very easy way to use idle disks to create a private cloud NAS for you and your family

owncloud has Windows,Linux,Macosx,Android,IOS client to sync