qemu-kvm

[Easy Rhino]

ive been screwing around with enterprise level virtualization and i have to say the package that comes with centos/redhat 6 is quite good. qemu-kvm is very very fast when virtualizing linux systems. all of this is done on the command line and i could not be happier.

[AthlonX2]

um....is that like dosbox

[Easy Rhino]

lol, no.

[rahulyo]

Ya its better n easy. Few commands n virtual machine (OS) install .

[W1zzard]

i'm missing some kind of free gui based management thing for qemu-kvm that lets me do common VM tasks

[v12dock]

I though qemu was a processor emulator not hypervisor

OpenVZ and Xen are the two linux hypervisor's that I know of

[Easy Rhino]

Originally Posted by W1zzard

i'm missing some kind of free gui based management thing for qemu-kvm that lets me do common VM tasks

virt-manager is the gui that can be used to do exactly this.

Originally Posted by v12dock

I though qemu was a processor emulator not hypervisor

OpenVZ and Xen are the two linux hypervisor's that I know of

from the open source project:QEMU is a generic and open source machine emulator and virtualizer.

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance.

When used as a virtualizer, QEMU achieves near native performances by executing the guest code directly on the host CPU. QEMU supports virtualization when executing under the Xen hypervisor or using the KVM kernel module in Linux. When using KVM, QEMU can virtualize x86, server and embedded PowerPC, and S390 guests.

[v12dock]

How does it compare to OpenVZ or Xen

I had a VPS with OpenVZ and the node was WAY over sold. Ran like complete shit, ended up switching Xen still waiting for it come online so I can test it out

[W1zzard]

Originally Posted by Easy Rhino

virt-manager is the gui that can be used to do exactly this.

does that work under windows ? remotely ? i don't have X installed on the server

[Aquinus]

Originally Posted by W1zzard

does that work under windows ? remotely ? i don't have X installed on the server

It will not run under Windows as KVM is a kernel-level virtualization built for the Linux kernel.

It allows remote management (through KVM) using VNC (password optional, but I do recommend one.)

You don't need X installed on the server. You can install X Server on a windows machine, open an X tunnel using SSH, and open virt-manager and it will be displayed on your Windows box. I work with KVM in a business environment and it is a very nice platform (we have something like 8 QEMU/KVM virtual machines in production running on a dual-quad core xeon server with hyperthreading and 24gb of memory). Virt-manager makes it very easy to manage QEMU/KVM but the CLI tools gives you much more control.

Originally Posted by Easy Rhino

When used as a machine emulator, QEMU can run OSes and programs made for one machine (e.g. an ARM board) on a different machine (e.g. your own PC). By using dynamic translation, it achieves very good performance.

I thought it could only run under the architecture it was compiled for.

[Easy Rhino]

Originally Posted by W1zzard

does that work under windows ? remotely ? i don't have X installed on the server

on the linux end, you only need to setup whatever basic x-server packages exist for your distribution and tunnel in. for centos it is xorg-x11-xauth. if you are remotely logging in from windows you can use Xming as a remote display server and whenever you launch a program that requires a display it will handle it for you. if yuo remote from another linux box you can use a vnc client.