##Pi base config
1. Install pi OS lite
2. set static ip on same subnet as maria
    sudo nmcli con add type vlan con-name vlan201 ifname vlan201 dev eth0 id 201 ip4 172.16.201.250/24 ipv4.method manual ipv4.never-default yes
    ip addr show vlan201
    ping 172.16.201.151
    ping 172.16.201.152

##glusterfs install
sudo apt install -y glusterfs-server
sudo systemctl enable --now glusterd
sudo mkdir -p /data/gluster/witness
sudo systemctl status glusterd --no-pager
mkdir /data
mkdir /data/gluster

##galera arbitratot install
mkdir ~/garbd
sudo apt install -y galera-arbitrator-4
sudo nano /etc/default/garb
#Paste This:
    GALERA_NODES="172.16.201.151:4567 172.16.201.152:4567 172.16.201.250:4567"
    GALERA_GROUP="mgdev1"
    GALERA_OPTIONS="pc.wait_prim=no"
sudo systemctl enable --now garb
sudo systemctl status garb