The Vormox blog
Guides, deep dives and product news on automating Proxmox VE at scale.
Blog posts
Tuning Corosync Link Priority and Token Timeouts for Proxmox VE Cluster Resilience
Proxmox VE corosync redundancy only works if knet actually prefers the right link. Here's how to set link priority correctly, read corosync-cfgtool output, and avoid tuning the token timeout blind.
Virtual Machine vs LXC Container in Proxmox VE: Which One Should You Use?
Proxmox gives you two ways to run a workload: Create VM or Create CT. Here's what actually happens under the hood with each one, a side-by-side comparison, and a simple way to decide.
SR-IOV for Intel NICs on Proxmox VE: Passing Real NIC Performance Through to VMs
virtio-net hits a wall under sustained load because every packet gets copied through a host vhost thread. Here's how to pass Intel NIC virtual functions directly into Proxmox VE guests with SR-IOV for near bare-metal throughput and latency.
How to Enable Email Notifications in Proxmox VE for Backup and System Alerts
Set up Proxmox VE's notification system so failed backups, storage warnings, and cluster issues email you automatically, instead of finding out weeks later.
How to Enable Two-Factor Authentication (2FA) in Proxmox VE
A beginner's walkthrough for turning on TOTP two-factor authentication in Proxmox VE, including recovery keys, realm-wide enforcement, and how to recover if you lock yourself out.
Configuring SR-IOV Networking for Proxmox VE 8.x Virtual Machines
A practical walkthrough for enabling SR-IOV on Intel and Mellanox NICs in Proxmox VE 8.x, from IOMMU groups and virtual function creation to hostpci mapping, VF persistence, and the pitfalls that trip up production deployments.
How to Resize a Virtual Disk in Proxmox VE (Without Losing Data)
Your Proxmox VM's disk is full and you don't want to rebuild it. Here's how to grow a virtual disk safely in Proxmox VE 9.2, then extend the partition and filesystem inside Linux or Windows guests.
Speeding Up HDD-Backed ZFS Pools in Proxmox VE with a Special Device
HDD-backed ZFS pools on Proxmox VE and PBS choke on metadata-heavy operations like garbage collection and snapshot listing. Here's how a mirrored ZFS special device fixes it, with diagnosis, commands, and sizing guidance.
How to Set Up a VLAN-Aware Bridge in Proxmox VE
A beginner-friendly guide to VLANs in Proxmox VE — what a VLAN-aware bridge does, how to enable it, how to tag individual VMs, and the trunk port setting that trips up almost everyone the first time.