[Linux-cluster] VMware over GFS?

[lists at grounded.net]

Been away from GFS for a while so have not kept up lately.

I started wondering if VMware server or ESX can be run redundantly so started thinking about running 2 or 3 servers in a GFS cluster. This got me to wondering if I should be looking at something else, such as xen or the virtualization server built into redhat distro.

 From what I've read, VMware does have clustering abilities but that seems to be for win houses only. While I do have a handful of win guests, most of my servers are linux. 

I've already come across problems moving win guests from one server to another where the win guest would then want to be re-activated again. That turns into nonsense because I end up having to call their help line each time I make a change, moving things around while testing.

Thought I'd ask here since the best directions I've ever gotten were on this list.

Thanks.

Mike