This sounds pretty doable. I think Xen should be OK unless running paravirtualized, but my guess is that paravirtualized Xen in public clouds will be rather marginalized (EC2 only?). Jury is still out though. --Randy On 4/22/09 1:25 AM, "Chris Webb" <chris@arachsys.com> wrote:

If you're doing hardware virtualisation, you can always pass the machine UUID in through the SMBIOS UUID without breaking the abstraction layers.

-- Randy Bias, VP Technology Strategy, GoGrid randyb@gogrid.com, (415) 939-8507 [mobile] BLOG: http://neotactics.com/blog, TWITTER: twitter.com/randybias