Hypervisor

Install Proxmox

Enter the following values during setup.

Install Proxmox with default Partitioning.
Hostname pve-b or pve-a
Domain lan.stamx.nl

Disks and partitioning

Remove lve-local via the proxmox UI.
Remove the data partition.
```
lvremove pve/data
```

Extend the root logical volume and resize.

lvextend -l +100%FREE /dev/pve/root

resize2fs /dev/pve/root

Update the system.
```
update-initramfs -u
```

Network

Backup default network interfaces file

cp /etc/network/interfaces /etc/network/interfaces.bak

Change network settings
```
nano /etc/network/interfaces
```

Paste the following content into the interfaces file for each specific Proxmox hypervisor

pve-apve-b

auto lo
iface lo inet loopback

iface enp0s31f6 inet manual
#Onboard

iface enp4s0f0 inet manual
#PCI

iface enp4s0f1 inet manual
    pre-up ethtool -G $IFACE rx 4096 tx 4096
    pre-up ethtool -C $IFACE rx-usecs 0
#PCI

auto vmbr0
iface vmbr0 inet static
    address 10.0.99.2/24
    gateway 10.0.99.1
    bridge-ports enp0s31f6
    bridge-stp off
    bridge-fd 0
#mgmt

auto vmbr1
iface vmbr1 inet manual
    bridge-ports enp4s0f0
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
#wan

auto vmbr2
iface vmbr2 inet manual
    bridge-ports enp4s0f1
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
#lan

source /etc/network/interfaces.d/*

auto lo
iface lo inet loopback

iface eno1 inet manual
#Onboard

iface enp3s0f0 inet manual
#PCI

iface enp3s0f1 inet manual
    pre-up ethtool -G $IFACE rx 4096 tx 4096
    pre-up ethtool -C $IFACE rx-usecs 0
#PCI

auto vmbr0
iface vmbr0 inet static
    address 10.0.99.3/24
    gateway 10.0.99.1
    bridge-ports eno1
    bridge-stp off
    bridge-fd 0
#mgmt

auto vmbr1
iface vmbr1 inet manual
    bridge-ports enp3s0f0
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
#wan

auto vmbr2
iface vmbr2 inet manual
    bridge-ports enp3s0f1
    bridge-stp off
    bridge-fd 0
    bridge-vlan-aware yes
    bridge-vids 2-4094
#lan

source /etc/network/interfaces.d/*

Reboot
```
reboot now
```

Import ZFS pool

List zfs pools and check if vm-storage pool exist.
```
zpool import
```
Import zfs pool
```
zpool import -f vm-storage
```
Reboot
```
reboot now
```
Add pool to the UI.
Go to Datacenter -> Storage -> Add -> ZFS -> Select vm-storage and enter id vm-storage

Post install scripts

The scripts can be found at https://community-scripts.github.io/ProxmoxVE/

Run the 'Proxmox VE CPU Scaling Governor' script and set it to powersaving
https://community-scripts.github.io/ProxmoxVE/scripts?id=scaling-governor
Run the 'Proxmox VE Post Install' script
https://community-scripts.github.io/ProxmoxVE/scripts?id=post-pve-install
Run the 'Proxmox VE Kernel Clean' script to clean up old kernels
https://community-scripts.github.io/ProxmoxVE/scripts?id=kernel-clean

High Availability

Add QDevice

On the Qdevice

This command sets the root password, enables root login in the SSH configuration, and restarts the SSH service.

sudo passwd root && sudo sed -i 's/#PermitRootLogin/PermitRootLogin yes/' /etc/ssh/sshd_config && sudo systemctl restart sshd

Install corosync packages

sudo apt install corosync-qnetd corosync-qdevice

On the Proxmox node(s)

Install corosync-qdevice packages. Repeat for each node in your cluster.
```
apt update && apt install corosync-qdevice -y
```

Check current status

pvecm status

the output should look like this

Cluster information
-------------------
Name:             pve-cluster
Config Version:   2
Transport:        knet
Secure auth:      on

Quorum information
------------------
Date:             Wed Mar 26 13:41:51 2025
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          0x00000002
Ring ID:          1.16
Quorate:          Yes

Votequorum information
----------------------
Expected votes:   2
Highest expected: 2
Total votes:      2
Quorum:           2
Flags:            Quorate

Membership information
----------------------
    Nodeid      Votes Name
0x00000001          1 10.0.99.2
0x00000002          1 10.0.99.3 (local)

Add the QDevice to the cluster. Run this on one of the Proxmox nodes. Change the IP address to the IP of the Qdevice
```
pvecm qdevice setup 10.0.99.102 -f
```

Once this is completed check if the Qdevice has been added to the cluster.

pvecm status

The output should now look similar like this:

Cluster information
-------------------
Name:             pve-cluster
Config Version:   3
Transport:        knet
Secure auth:      on

Quorum information
------------------
Date:             Wed Mar 26 13:51:33 2025
Quorum provider:  corosync_votequorum
Nodes:            2
Node ID:          0x00000002
Ring ID:          1.16
Quorate:          Yes

Votequorum information
----------------------
Expected votes:   3
Highest expected: 3
Total votes:      3
Quorum:           2
Flags:            Quorate Qdevice

Membership information
----------------------
    Nodeid      Votes    Qdevice Name
0x00000001          1    A,V,NMW 10.0.99.2
0x00000002          1    A,V,NMW 10.0.99.3 (local)
0x00000000          1            Qdevice

Make a VM HA

Turn on Replication for the VM that you want to make High Available.
Go to Datacenter -> HA and add a Resource.