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I am playing around for years with all major virtualization environments like all VMware products, Microsoft and several xen based solutions. But OpenVZ is the overall winner and I summarize here just a few features which make it perfect for me.

Basic features:
  • No special hardware necessary, runs on all of my pc´s and servers
  • Fast installation of OpenVZ, approx. 20 min starting from bare metal
  • Extremely fast and easy installation of guest´s, within 1 minute
  • Open Source licensed with good support from the OpenVZ team
Advanced features:
  • Online Live migration - YES, it works
  • Consistent online backups: see our vzdump
We run Proxmox Mail Gateway (in high availability cluster) on OpenVZ and we did a lot of benchmarking with real data. And we were very impressed with the results.

Comments

(Anonymous)
Nov. 19th, 2008 10:30 pm (UTC)
Re: I agree
lol. I've been working with Xen recently and it is a disaster. Here's an example. Straight from the Xen documentation 2.2 Installing from Binary Tarball - download from this URL: http://www.xensource.com/downloads/ guess what? That URL doesn't even work, page not found.

Anyway I installed it from the Fedora repository. I'm using Fedora 8. You cannot use Fedora 9 or even Fedora 10 that is coming out because neither one supports running as a Xen dom0.

Also, when creating a VM you need a domU kernel. Or if you use virt-manager you need an install media url. Where do you get a domU kernel? No where does it specify what is a valid install url, how you create a valid install directory from a iso file or why you can't use an iso file in the first place. I guess you are just supposed to magically know this. The docs suck ass. Why aren't there links to Ubuntu, Centos, Fedora, etc. domU kernels? or at least a hint of how you might get them?

I finally found a valid Fedora 9 install URL and got a few Fedora 9 domU's configured and setup, but what took 2 days should have taken 2 hours max.

I want to start a VPS hosting company and am evaluating Xen vs OpenVZ. I'll try out OpenVZ soon.

Enzo


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