OpenShift is okay but has quirks unless you have a major Kubernetes staff; Proxmox is good for most but I wouldn't use at massive scale. Azure Stack/ Hyper-V can work but has its own quirks.
It takes a long time to change corporate mindset.
What I don't understand is what prevents them to shop around for alternatives. What is VMWare's very good moat that prevents the competition from invading their castle?
https://www.theregister.com/software/2026/03/24/half-of-vmwa...
20 years ago anyone and everyone had datacenters full of VMware. Now most of it is stuff that a company hasn't bothered to move to cloud yet. There's a few things it's still the best choice for but those are niche things. Like stuff that absolutely needs to be self hosted for privacy or security. The time of VMware being the default is long gone.
Moving from a mainstream to a niche product means a market that's shrinking. No growth potential. No potential for new competitors to start up. Proxmox is good but it's not exactly enterprise.
This is why Broadcom bought it and sucks the most value out of it before it completely disappears.
2. Tesco had a good deal they paid for ahead of time, with the full support cycle detailed in the contract that Broadcom is refusing to honor.
3. Broadcom is arguing that since Tesco is migrating off, they can't sue for damages. Tesco would probably counter argue that the migration is due to Broadcom not honoring the original contract.
Then there's training. you can't easily switch your admins and service desk techs to a different product. That alone takes months, of not years, and costs a lot. Rewrite all processes, etc.
Then there's 3rd party integration. Since VMware was basically the "default", most 3rd party products offered turnkey integration into VMware, and VMware only. Think backup applications or security etc. You don't switch backup vendors easily (for the same reasons - training, features, ...) and if you do consider it, it adds to the cost
This is why, for many companies that don't have 50-100 people or more in their IT department, it's more expensive to switch away from VMware so they grudgingly pay, while trying to move as much workload away from it as possible.
Guess you're fucking it up big time somehow then. Why would you tell people this? "Hey, we managed to make ourselves permanently dependent on some bullshit tech, please partner vendors, fuck as much as you possibly can so we can pass it off to shoppers."