[CentOS-virt] XEN and RH 6

carlopmart carlopmart at gmail.com
Tue Nov 10 09:11:24 UTC 2009

Frederic SOULIER wrote:
> Hi,
> Do you really think that RHEL6 will not include dom0 version ?
Yes, Xen Dom0 will be never supported from RHEL6, onlu domU ...
> It seems that KVM will be the favorite for redhat virtualisation but i 
> think Xen is actually largely deployed.
> We have here a "cluster" of ten Xen centos 5.4 dom0 and i'm asking what 
> it will become with RHEL6 if there is no more dom0 version.
Well, you have several options:

  - Migrate to KVM
  - Migrate to Oracle VM
  - Migrate to Windows Hyper-V
  - Migrate to VMware

  .. or your dom0 cluster will be unsupported ....

> We think about migration from Xen to KVM but the process could be 
> complex and i don't know if kvm will equal Xen performance for 
> production use.
> Anyone as the same problem/question here.

I have do it some tests using KVM under rhel5.4 and perfromance it is very very high 
... but only for rhel5.x guests. For Windows versions or solaris/opensolaris systems 
performance is ver very poor until they released virtio drivers for these platforms ...
> Regards

CL Martinez
carlopmart {at} gmail {d0t} com

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