What is the best server?

What is the best server?

That depends on what you intend to do and the provider.

In Korea mostly use Xen these days

Ah the age old debate. We use OpenVZ and still stand by it, but a lot of people seem to be using Xen over OpenVZ these days

Both of them are open source server virtualisation technology but with some differences.Xen gives you much like dedicated server behaviour with your own instance of linux kernel and its quiet stable.On the other hand openvz is a layer on underlying OS.It is simple and has low overhead and better performance. You can choose either of them.

We use OpenVZ

OpenVZ Is easier to manage in my POV so my vote goes to it.

I think If you might have lot of RAM and CPU then go to OpenVZ or else if you have less RAM and CPU then stay with Xen. So then your VPS client can't be overload the server.

I'd use paravirtualized Xen if you want to run linux machines. Performance and stability are great. That said, if you want to take a chance - KVM (kernel virtual machine) has certain architectural advantages, as well as the largest corporate linux provider in the world behind it (Red Hat).

We currently use OpenVZ, but our newer nodes will be using Xen because it can virtualize Windows.

We also intend on using Xen simply because it can support Windows.

We use both openvz and xen. But most customers go for openvz over xen.

We are opting for Xen for that whole 'real virtual machine' thing it has going on. :)

One has a SWAP file - one doesn't.
OpenVZ can also easier be used for overselling, in part due to the above, in part due to all the other reasons stated even further above.

If you're buying Xen gets my vote... you won't get a VPS on an oversold node. You're more likely to get this with OpenVZ.

Another vote for XEN - on xen-based node's overselling isn't possible, its more reliable and solid.

Greetings:

From experience, Parallels openVZ is not true virtualization. There can be security issues. Its main plus is that it allows overselling of the server and services.

Xen, VMWare, and other true virtualization offerings provide real file systems, security, etc.

Thank you.

Yet another vote for XEN.
On xen-based node's overselling isn't possible,
Xen when compared to openVZ its more reliable and secure.
Xen is used more professionally than the simple cowboy tool openVZ

You know what they say "Ten to Xen" its all whats required. You cannot even compared OpenVZ to Xen.

The world biggest infraestructure is Xen powered. That means Google and Amazon.

OpenVZ is like a shared hosting. Its just splits the OS in several parts like chrooted environment. Its not actually real virtualization.

Xen is a real virtualization plataform just like VmWare.

The only drawback is that it requires allot more experience to handle. OpenVZ is very easy to manage.

If you just need hosting, OpenVZ is great. If you need Java or some other platforms that are more enterprise workloads, go with Xen. Xen can be oversold but its not default out of the box, and nobody runs it that way, it requires some hacking to be able to oversell it. Xen is really stable, one VM cannot bring another down, I never saw it at least in years and I saw it in Virtuozzo/OpenVZ all the time, where one users could bring down the whole server.

Now that Citrix has jumped into Xen its actually very easy to manage. Someone said if you have allot of CPU and RAM go with OpenVZ and if you don't go with Xen. Its actually exactly the other way around. Most people with small hardware just run OpenVZ, and create 256 Vms, to 2GB at the most. Xen requires its own allocated memory and CPU. You cant put 30 VMs on Xen like you do with OpenVZ, most people don't go over the cores they have, so thats 6 to 8 VMS per server and they normally use very powerful machines, just like you would do with VmWare.

We used all platforms, VmWare, OpenVZ/Virtuozzo, Xen.

Xen is the only one we have know. So my vote is pretty clear.

Xen can be oversold but its not default out of the box
you are wrong!

I recommend XEN, as you can load your own kernel modules and provider can't oversell resources.

With Virtuozzo we’ve seen this happen a lot and it is primarily because of two factors:

* Oversold memory and bustable memory.
* Hypervisor scheduler. While Xen’s scheduler options are much more limited, it works and works well.

more about Virtuozzo vs. Xen at URL http://www.hostcube.com/blog/virtuozzo-vs-xen

you are wrong!

I recommend XEN, as you can load your own kernel modules and provider can't oversell resources.


more about Virtuozzo vs. Xen at URL http://www.hostcube.com/blog/virtuozzo-vs-xen

You are wrong and you did not read what I said. It can be oversold but its not out of the box, you have to hack it a little bit and thats why I said nobody does this and I never saw someone doing it. It can be done but its not going to work well for the VM and thats why nobody does this. There are some patches around the Internet that people made which use memory balloning.

http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action=AttachFile&do=get&target=Memory+Overcommit.pdf

So technically speaking, Xen can be oversold. But on real hosting nobody does this and thats why I also advertise Xen as "It CANT be oversold" but thats because its not made for it. But like any open source product people modify it to their own uses.

You can't beat Xen

You are wrong and you did not read what I said. It can be oversold but its not out of the box, you have to hack it a little bit and thats why I said nobody does this and I never saw someone doing it. It can be done but its not going to work well for the VM and thats why nobody does this. There are some patches around the Internet that people made which use memory balloning.

http://wiki.xensource.com/xenwiki/Open_Topics_For_Discussion?action=AttachFile&do=get&target=Memory+Overcommit.pdf

So technically speaking, Xen can be oversold. But on real hosting nobody does this and thats why I also advertise Xen as "It CANT be oversold" but thats because its not made for it. But like any open source product people modify it to their own uses.

Sorry mate, thought different as almost every where described that XEN run as dedicated server and resources are specific for specific account - compare to OpenVZ.

you are wrong!

I recommend XEN, as you can load your own kernel modules and provider can't oversell resources.


more about Virtuozzo vs. Xen at URL http://www.hostcube.com/blog/virtuozzo-vs-xen

Xen supports new methods like memory overcommit and ballooning.
Also, XEN hosts can of course overcommit on CPU and IO, so the age old adage "You get what you pay for" still holds true even with Xen.

Either is fine, but make sure you go with a host that gives ample space to all VPSes.

That said, you won't see many Xen hosts trying to push hundreds of VPSes on one machine.

It depends what you want to do with your VPS. If you need control and stability, then go for Xen. If you need performance, you'll probably get more for your buck with OpenVZ/Virtuozzo. You can take a look at this WikiVS comparison http://www.wikivs.com/wiki/Virtuozzo_vs_Xen to see what you would need.

Xen, it is good

I really hate useless posts like this one. Granted I do agree that "Xen is good." Perhaps you care to elaborate on why Xen is good? Support your position at least a little, with some form of supporting arguments.

Xen can be oversold, just the server RAM can't be oversold. There are no limits to throwing 1 1TB disk and having i/o problems or loading 16GB of RAM on a single processor.

RAM sticks are cheaper than processors/disks these days.

As for OpenVZ, we use both Xen and OpenVZ and I can say xen gives better isolation and performs more like a dedicated, but openvz gives near native performance in every aspect especially when it comes to context based switching. So if you need your own system that requires kernel modules etc then I would recommend Xen, but for standard hosting I would recommend OpenVZ. As long as you choose a good provider, OpenVZ will outperform Xen.

Xen is the best,

As you can have any platform on a linux host

I would go for openvz if the provider gurantees that the host nodes would never be stuffed with more ve's than it can handle if not i would go for xen since it is more predictable and reliable since resources are dedicated.

with hypervm people can oversell for sure :)

with hypervm people can oversell for sure :)

HyperVM isn't virtualization software. It is an OpenVZ&Xen management panel.