[SLL] To Xen or not to Xen

[Jarod Wilson]

On Monday 10 September 2007 06:55:37 pm Phil Mocek wrote:
> On Mon, Sep 10, 2007 at 03:10:27PM -0700, Adam Monsen wrote:
> > I had a long, furious battle with Xen during mid-2006 and
> > concluded that I really didn't like it at all.
>
> I had a similar battle, but concluded that either I wasn't ready
> for Xen, Xen wasn't ready for me, or both.
>
> > Maybe it is easier to use these days, who knows.
>
> I suspect this is the case.  I've seen some Xen kernels in the
> Debian and/or Ubuntu repositories, and IIRC, SuSE is or was
> working on a GUI.

Last "SUSE" Xen GUI I saw was actually the one Red Hat wrote:

http://virt-manager.org/

Xen on Red Hat Enterprise Linux 5 with virt-manager and libvirt is actually 
pretty solid, scriptable, and easy to set up.

> > Xen:
> > * requires special hardware for fully-virtualized VMs
> > * takes for fricking ever to compile
>
> * allows (or will allow?) you to move a VM from one physical host
>   to another -- while it is running, without dropping network
>   connections; search for "xen live migration" for details

Allows.

All that said, I'd probably still go with the OP's option A (which is actually 
what I do at home). Xen is still quite stupid in areas like power management 
and cpu frequency scaling.

-- 
Jarod Wilson
jarod at wilsonet.com