TrueNAS and Proxmox Storage Integration Guide

TrueNAS and Proxmox Storage Integration Guide - Printable Version

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TrueNAS and Proxmox Storage Integration Guide - santosh - 04-07-2026

TrueNAS and Proxmox Storage Integration Guide

Overview
This guide explains how to set up TrueNAS as an NFS storage backend and integrate it with Proxmox for VM and container storage.

Environment

TrueNAS Server IP: 172.16.x.x
Proxmox Node IPs: 172.16.x.21, 172.16.x.22, 172.16.x.23
Network: 172.16.x.0/24
Connection: Via VPN (e.g. WireGuard)

Step 1 - Access TrueNAS

Connect to your VPN first (e.g. WireGuard)
Open TrueNAS UI in your browser
Login with your TrueNAS admin credentials

Step 2 - Create Storage Pool in TrueNAS
Run on: TrueNAS Server

Navigate to Storage > Pools > Add Pool and follow these steps:

2.1 Set RAID Configuration

Use RAIDZ2 for redundancy
Add all 3.64 TiB x 12 disks under Data
Set Width to 12 to use all disks in one VDEV
Confirm configuration and create the pool e.g. ProxmoxPool

2.2 Create Dataset (Optional)

Select your pool ProxmoxPool
Add a dataset e.g. ProxmoxStorage for better organization

2.3 Add NFS Share

Go to Sharing > Unix Shares (NFS) and click Add
Path: /mnt/ProxmoxPool or dataset path if applicable
Networks: 172.16.x.0/24
Hosts: Add specific Proxmox node IPs
Maproot User/Group: Set both to root
Save and enable the NFS share

Step 3 - Add TrueNAS NFS Share to Proxmox
Run on: Proxmox Server

3.1 Login to Proxmox

Open Proxmox UI in your browser e.g. https://your-proxmox-ip:8006
Login with your Proxmox admin credentials

3.2 Add NFS Storage

Navigate to Datacenter > Storage > Add > NFS
ID: TrueNAS-NFS
Server: 172.16.x.x (TrueNAS IP)
Export: /mnt/ProxmoxPool
Content: Select Disk image, ISO, Backup
Click Add to save

Step 4 - Test the Setup
Run on: Proxmox Server

Verify NFS exports from Proxmox:

Code:
showmount -e TRUENAS_IP

Ping TrueNAS from Proxmox to verify connectivity:

Code:
ping TRUENAS_IP

Create a test VM and select TrueNAS-NFS as storage for disks or backups then deploy and start the VM to verify functionality.

Step 5 - Troubleshooting
Run on: TrueNAS Server

If connectivity issues occur restart NFS services on TrueNAS:

Code:
service nfs-server restart

Common checks:

Ensure Proxmox nodes can ping TrueNAS IP
Verify NFS share is enabled in TrueNAS UI
Check firewall rules allow NFS traffic on port 2049
Verify VPN connection is active

Summary

TrueNAS configured with RAIDZ2 pool using 12 disks
NFS share created and restricted to Proxmox network
NFS storage added to Proxmox Datacenter
Storage available for VM disks, ISOs and backups
Always test connectivity before deploying production VMs
Use RAIDZ2 for production environments requiring redundancy