Running Proxmox in Production? Here's What Dell Won't Tell You

In the enterprise IT world, there's a quiet but growing rebellion taking shape: teams are ditching VMware and asking whether Proxmox can hold its own in real-world production environments. And if you're eyeing Dell PowerEdge servers as your hardware of choice, the conversation gets even spicier. Because while Proxmox may not show up on Dell's "officially supported OS" lists, the servers don't seem to care. They run it just fine. But here's the catch - and what Dell won't outright tell you: support policies aren't the same as compatibility. And in enterprise, that distinction matters. ## Proxmox + PowerEdge = Actually, It Just Works For those unfamiliar, Proxmox is a powerful, open-source virtualization platform that bundles a KVM-based hypervisor with LXC containers, high availability clustering, and out-of-the-box ZFS support. It's Debian at its core, with a kernel derived from Ubuntu. That last bit becomes important when we start talking about hardware compatibility. Plenty of sysadmins - from small shops to Fortune 500s - have been quietly running Proxmox on Dell PowerEdge machines. We're talking R720s, R740s, even the newer R760s. And guess what? It works. One user summed it up: "We have about 11 R760s running Proxmox, and also a bunch of R720, R730, R740, M630, M640. I'm not aware of any Dell servers with incompatibilities." Another added: "I work for a Dell and a Proxmox partner and both work great together. Don't believe in the no-sayers." If you're considering [enterprise hardware for your Proxmox production cluster](/proxmox/enterprise), understanding Dell's position is crucial. ## So Why Isn't Proxmox 'Supported'? Here's where the nuance kicks in. When Dell says Proxmox isn't a supported OS, they're not saying it won't run on their servers. They're saying that if you call tech support about a Proxmox-specific driver issue or a kernel panic, they won't escalate it. Why? Because support resources are finite. Dell validates certain OSes (like RHEL, SUSE, Windows Server, and yes - Ubuntu) so their engineers can troubleshoot with confidence. Proxmox, being a community-driven project with its own support ecosystem, simply didn't make the cut. One Redditor put it plainly: "Unsupported just means they won't help you debug weird software bugs or write custom drivers. That's not the same as hardware incompatibility." It's a distinction worth repeating. ## Hardware Failures? Dell Still Replaces Stuff - Most of the Time This is where things get murky. In theory, Dell could reject a warranty claim if your OS isn't supported. And some admins have anxiety about exactly that - especially when critical hardware like disks, NICs, or motherboards go bad. "The concern," one user wrote, "is that Dell support will close the ticket without replacing the hardware because the server is running an officially unsupported OS. They can check OS from the TSR logs." But most of the community isn't buying it. Veterans who've worked with Dell support for years report a different experience. According to one user: "I've had NICs, motherboards, storage controllers, and iDRAC cards fail. All replaced by Dell with Proxmox running. I've never even been asked what OS is running." Another shared: "Dell doesn't care about the OS. They run their own diagnostics from BIOS or bootable USBs. They never touch the OS drives." Still, there are exceptions. If your issue smells like a driver bug or firmware glitch tied to an unsupported OS, you could hit a wall. One admin recalled: "The only issue is if you run into a driver or firmware problem. It needs to be a supported OS to get escalated to engineering to fix the code." ## Workarounds, Workarounds Everywhere Enter the gray zone. Some IT pros keep a USB stick with Ubuntu or a live ISO around - just in case they need to prove a hardware fault outside of Proxmox. Others flat-out lie and say they're running Ubuntu, which is technically not false considering the kernel origins. Then there are those who go full stealth mode: "Don't fill out the OS field in the ticket. It's irrelevant. If it's hardware, it'll fail on any OS." This isn't advice, just what people are actually doing. Your mileage - and risk tolerance - may vary. ## Supermicro, Lenovo, and Others: The Official Alternatives If the "unsupported OS" thing keeps you up at night, some vendors are stepping in where Dell doesn't. Lenovo and Fujitsu, for example, officially support Proxmox on some of their enterprise-grade servers. Supermicro, long beloved by the homelab crowd, is also earning enterprise cred thanks to its hardware flexibility and no-nonsense support. One user noted: "We're running Supermicros for our Proxmox clusters - no issues, and more customizable than Dell." Another pointed out: "Lenovo is a Proxmox partner, and they support their v3 servers officially. That peace of mind matters in production." ## Proxmox in Production: Know Before You Go If you're serious about running Proxmox in production on Dell hardware, here's what seasoned admins recommend: **Buy support - from Proxmox.** If you're ditching VMware, get a Proxmox subscription. It's affordable and gives you a backstop when things break on the software side. **Understand what 'unsupported' really means.** Dell won't help with kernel issues, but they will replace failed power supplies and RAID cards - as long as you can prove it's hardware. **Have a plan for diagnostics.** Keep a live CD around to demonstrate hardware failures outside of Proxmox, especially for newer hardware where edge-case bugs might crop up. **Know your RAID config.** Some Dell PERC cards default to RAID mode, which complicates ZFS or Ceph setups. Look for HBA mode or swap for an HBA-friendly controller. **Be ready to self-support or escalate creatively.** Whether that's community forums, Proxmox docs, or that one coworker who's secretly a wizard. ## Final Thought: Proxmox Is No Longer Just a Homelab Toy The vibe in the sysadmin world is changing. What used to be the domain of hobbyists and experimental labs is now standing toe-to-toe with the likes of VMware and Hyper-V - in real production clusters. And while Dell might not hand you a gold star for using Proxmox on their PowerEdge servers, the consensus is clear: it works. In many environments, it works brilliantly. So don't let the lack of an official sticker scare you off. Just know the boundaries, get your support structure right, and maybe - just maybe - keep a bootable Ubuntu stick in your drawer. You never know when you'll need to put on a show.