The Vormox blog
Guides, deep dives and product news on automating Proxmox VE at scale.
Blog posts
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.
Setting Up a Corosync QDevice for Two-Node Proxmox VE Cluster Quorum
A two-node Proxmox VE cluster loses quorum the moment one node reboots. Here's why the vote math breaks down and how to fix it permanently with an external corosync QDevice as a tie-breaker.
What Is a Proxmox Cluster? (And Do You Actually Need One?)
Clustering sounds like something only data centers need, but it's really just several Proxmox nodes agreeing to share one view. Here's what Corosync and quorum actually mean, and when you genuinely need a cluster versus when you don't.
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