[ale] Mass Machine Virtualization w/ Remote GUI Access

[Christopher Fowler]

On Tue, 2006-02-21 at 16:05 -0500, James P. Kinney III wrote:
> The IO bottleneck you run into is network bandwidth. Those Tyan boards
> are some serious monsters and should be the best things out that can
> handle the load. Run Xen on each physical CPU and ESX on each Xen
> virtual machine to partition off the server from itself.
> 

Why run Xen?  What does it offer ESX?