serious virtualization without HW support?

[Bill Crawford]

On Wednesday 01 April 2009 13:39:36 Robert P. J. Day wrote:
>   i'm reading the section on CPU virtualization extensions here:
>
> http://fedoraproject.org/wiki/Virtualization_Quick_Start
>
> and it occurs to me to ask whether anyone would want to get
> *seriously* into virtualization without having machines with those
> extensions.
>
>   is it safe to say that, by now, most modern systems come with VT or
> AMD-V support?  and by "serious" virtualization, i don't mean someone
> downloading and goofing around with it, i mean people who want to set
> up virtual corporate servers or mission-critical stuff.
>
>   thoughts?

I think there are quite a few businesses still using Xen and related stuff (like 
the "vserver" containers) to run real live applications, although where I work 
that was mostly done to consolidate development and testing platforms.