Xen users - Nov 2005 - Recommended hardware?

Hi folks,

I''m about to install Xen on a donated colo server for a "good
cause".  The hardware hasn''t been bought yet and I need to spec
it.
As it''s a donation it''s vitally important that I get fully
Xen-compatible hardware first time.  It would also be nice if it was
cheap. ;)

It''s been about 6 months since I last installed Xen and that was on
a P4 machine.  How''s amd64 support coming along?  Is it wise at this
stage to pick an amd64-based server?

If staying 32-bit then how is PAE support?  My P4 machine has 2GB
RAM so I get to see it all, but if I specced a 32-bit machine with
4GB am I going to be able to see it all?

I''m in UK and will be hosting same place as xensource.com.  What
hardware do you guys use?

Anyone using Dell SC1425s?

Cheers,
Andy


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>It''s been about 6 months since I last installed Xen and that was on
>a P4 machine.  How''s amd64 support coming along?  Is it wise at
this
>stage to pick an amd64-based server?
AMD64 support will be part of the 3.0 release, so it should work fine.
>If staying 32-bit then how is PAE support?  My P4 machine has 2GB
>RAM so I get to see it all, but if I specced a 32-bit machine with
>4GB am I going to be able to see it all?
PAE support is also part of the 3.0 release, and is looking pretty stable 
for people now. It should also work fine. Note that PAE Xen uses a 
different interface to x86_64 Xen and x86_32 Xen: you won''t be able to
run
normal 32-bit Xen guests on it.

You won''t see all of 4Gig without PAE (although how much you see
depends on
how your firmware configures your memory-mapped IO regions). With PAE you 
should be able to use all of it.

Cheers,
Mark
>I''m in UK and will be hosting same place as xensource.com.  What
>hardware do you guys use?
>
>Anyone using Dell SC1425s?
>
>Cheers,
>Andy
>
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