Re: [Xen-users] Other virtualization technologies alongside xen?

[Mark Williamson <mark.williamson@xxxxxxxxxxxx>]

> >> Does xen play nice with any other virtualization technologies?  I tried
> >> vmware and virtualbox, but they both crash under the xen kernel.
> >
> > We have couple servers with xen and openvz. They are doing quite
> > alright next to each other. CentOS5.
>
> Are you saying that you're running an OpenVZ server , with openVZ VM's,
> in a Xern domU? Doesn't  that cause a big network bottleneck, and a NAT
> headache?

If you ran it in a Xen PV domU (or maybe an HVM domain with PV net drivers) 
the network performance ought to be OK.  Other than maybe generating more 
traffic, it's not going to seem much different to Xen, I'd have thought?

There *is* an argument for running OpenVZ VMs in a domU only, I suppose: a 
kernel exploit can - in principle - allow an OpenVZ guest to take over the 
kernel and thus the whole OpenVZ machine.  If your OpenVZ is in a domU this 
puts a hard barrier between your OpenVZ VMs and dom0, just as you already 
have between other Xen domains and dom0.

Cheers,
Mark

-- 
Push Me Pull You - Distributed SCM tool (http://www.cl.cam.ac.uk/~maw48/pmpu/)

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