Posted by josephcsible 14 hours ago
As a user of Proxmox, and observer of VMware infrastructure in other silos in some IT orgs I've been in, there is no way that Proxmox was a viable solution 3-5 (or more) years ago.
Hyper-V could have been used in many instances. I know a few places that chose to start moving to Nutanix even before the Broadcam fiasco. OpenStack is useful for many large scale environments (especially with tenant isolation and usage tracking/billing/chargebacks).
Proxmox is good a good solution for SMBs, but (especially pre-9.x) there were a bunch of things that made it much less usable for large(r) scale deployments IMHO.
It does help that I have thirty years Linux experience compared to the paltry twenty five or so of VMware (which was RedHat plus stuff back in day)
I also have rather a lot of Hyper V exposure too and I defy you to love its iSCSI and networking, let alone that awful vTPM thingie.
It's Proxmox for me, any day. Even when I've completely knackered it I can always boot a systemrescuecd and mount and chroot the thing back to life.
I had asked for vSphere to avoid this problem, and they balked at the licensing costs even in the good ol' days.
I like Proxmox a lot, but it is technically and commercially several years behind. There is no moat, and when stuff slides sideways, you need to understand what's going on (e.g a competent sysadmin). That is changing with the recent Proxmox NA announcement, but still not there.
OpenStack is not the same product at all, and is about an order of magnitude more complicated. Much more powerful, but instead of a good sysadmin, you probably want a team (and maybe some core devs).
Define "pretty big". Proxmox officially supports up to 32 nodes in a cluster and the Proxmox folks themselves have "seen clusters of around ~24 nodes in production" (as of 2025) and for "bigger clusters than that, fine-tuning might be necessary":
* https://forum.proxmox.com/threads/proxmox-with-48-nodes.1746...
There are folks talking about running things in the high-40s and low-50s, but that's not officially support. If you have beefy hardware you can fit a lot of VMs on a single hypervisor (I've always found running out of RAM is often the limit).
A single vSphere cluster can have up to 96 nodes (without vSAN), and vCentre can handle multiple clusters (2500 total hosts; 40k VMs). Proxmox recently released Cluster Manager, which helps with feature parity.
I'm a happy user of Proxmox for a number of years (and helped ran OpenStack before that), but I think for large(r) scale deployments (and even smaller ones) there's a good reason which VMware was so popular. (How many folks are actually at that (large(r)) scale is a different question.)
(Also: XCP-ng doesn't seem to get much press. Haven't used it myself though.)
Oh it's crude on day one? So what? You're still operating and on your own terms, and every week a few more minutes of work gets added as little pain points get addressed by whoever cares, and before you know it it's better than anything you can buy, and the total cost was less than your previous licensing, and you never had to deal with a serial number or license manager or account rep, never had to care one bit about counting cpu cores or client seats or vms or physical hosts or ips or backup copies or spinning up new dev boxes or more production without warning or any of that bs.
The bigger you are, the less you need the convenience of outsourcing, not more.
Quite often the bigger you are the more the higher ups want risk to be mitigated, and so are often glad to cut a cheque to be able to yell at someone over the phone.
Waste of money
Buy declining companies with good customer bases, cut spending and raise prices.
From this page: https://archive.org/details/vddk_20260825
Might as well rewrite it in Rust at the same time, two birds with one stone.
I now use UTM to host Windows 11 Pro on my mac for exactly one Windows application.
With the exception of suspend, it does the job.
And of course anyone can file a lawsuit…
VMwware sure as hell did not invent the hypervisor, and we were damn careful not to ever claim that. The early unique IP was how to enable a hypervisor to use dynamic translation where required to work around non-virtualizable x86 instructions, we also did well with how to package a hypervisor to run on a host/share host devices etc. Over time that early differentiation went away as we helped encourage CPU vendors to include better hardware virtualization support. And the other big thing we had was just a market focus/desire to deliver value/delight nerdy users like ourselves.
Who is the granddaddy of hypervisors? It sure ain't KVM, and it sure ain't VMware. That would be IBM. They had decades of doing hypervisors on the mainframe when we were getting started as a tiny startup. They sure know a lot about hypervisors and had a x86 hypervisor research project in Watson labs. We were humbled when IBM fellow Rich Oehler came to us wanting to partner because he saw how far ahead we were. That was years before KVM even got started. The IBM collaboration, lead to years of great work with IBM, who helped VMwware get going with ESX Server. Although the focus of VMware since founding as away to end up focusing on the data center/server market we could not have done that so well and so fast without IBM and sales and GTM cooperation.
Now good on KVM and others for pushing open hypervisor technology, and any company in this space who actually cares about their users and customers. I hope KVM helps pound VMware/Broadcom into the dirt.