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Re: [Xen-users] how far can we go in terrm on scalability

from [Thomas Halinka]

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To:	Heiko <rupertt@xxxxxxxxx>
Subject:	Re: [Xen-users] how far can we go in terrm on scalability
From:	Thomas Halinka <lists@xxxxxxxxx>
Date:	Mon, 05 Jan 2009 14:52:41 +0100
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Hi Heiko,
> 
> we have some dom0 running on 8 core Intel XeonCPU E5345 2.33GHz with 8GB Ram,
> right now we have only 1GB to 2GB free on each dom0 and mostly only 3VM 
> running.
> Would it be possible for us to go to 16GB and add another 3-4 VM, or
> go to 32GB and run up to 12VM on one machine?
> Im not sure we activily use the VM Support that these CPU/Server come
> with, how can I find more info about this out of xen?

I have dom0 with 30 domUs and more in Production - no Problem. You have
to care about your xm start/stop-behaviour because of the memory.

> 
> Just thinking about what will be possible on our current hardware. Im
> doing some RTG with cacti from our dom0 and the domU,
> but the dom0 doesnt draw the network/cpu usage that the domU´s use,
> are there more ways to get  performance/usage infos?

write your own plugin using xm top.

> greets

Regards,

Thomas


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