[Xen-users] What hardware should I be considering?

[Eric Peterson <srcfoo@xxxxxxxxx>]

I'm looking at using Xen to host our client's servers and I was trying
to determine how Xen would scale and how many machines I should expect
to be able to run.

I am currently running Xen 3 on a FC4 test box and have a couple of
test machines running. I really like it so far and after some stress
testing we're going to invest in some more advanced hardware.

What processors would you recommend?  I was thinking of dual core
opterons, but I wasn't sure if Xen would work well on Opterons and take
advantage of the Dual core processor.

Does Xen 3 still suffer from a 4GB RAM limit?

Has anyone had any experience with the newer SATA solutions versus SCSI
disk?  I'm thinking of a SATA RAID 5 setup to save some cash and
gain some needed space.

What seems to work better, running from an image file or setting up
each host to use a partition? I like the simplicity of an image file,
but an lvm partition would be nice because you can resize them on the
fly.

Thanks,
Eric
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