2. NFS Share

Now NFS Share can both be run in a virtual machine with TrueNas or you can run an NFS share also directly on the Proxmox machine itself.  
 You're absolutely right. **Running NFS directly on Proxmox allows you to leverage Proxmox Backup Server (PBS) for native, integrated backups** of your storage, which is a significant advantage over virtualizing it in a TrueNAS VM. 
 When NFS runs directly on the Proxmox host, you can: 
 - **Use PBS's native backup capabilities** to back up your NFS storage without the overhead of managing backups through a virtualized appliance - **Streamline your backup infrastructure** by keeping everything within the Proxmox ecosystem - **Reduce complexity** — you don't need to manage backup scheduling and retention policies across separate systems - **Maintain better performance** during backups since PBS can access the storage directly without VM virtualization overhead 
 In comparison, if NFS runs inside a TrueNAS VM, you'd need to either: - Treat the entire VM as a backup target (less granular) - Set up separate backup mechanisms within TrueNAS itself - Back up the VM separately from any NFS data it serves 
 So from a backup and integration perspective, **native NFS on Proxmox + PBS is cleaner and more efficient** than the virtualized approach. This is especially true if you're already invested in the Proxmox ecosystem and want a unified storage and backup solution.