On Tue, Jan 6, 2009 at 1:59 PM, Nick Couchman <Nick.Couchman@xxxxxxxxx> wrote:
> I have a dom0 with 2 x Quad-Core Intel Xeon CPUs and 16GB of RAM. I also
> have close to 30 domUs running - on this particular system, most of them are
> Windows XP HVM domUs. The system works just fine - it actually still has
> some capacity to spare on it. My XP domUs only have 384MB of RAM each
> assigned to them, so I have quite a few GB of RAM left on the system. I
> also have a few PV domUs running Linux on the system.
>
> -Nick
>
Hello Nick and list,
sounds very promising, i already ordered some more RAM to double it on
one server,
now we ran into Diskspace shortage and thinking about getting an
external iSCSi SAN Box.
Is 1Gbit enough to serve 50+ VMs(Images for now) to up to 16 different Servers?
We have a BladeCenter where to storage would be attached to,
Most of the VM hold websites, but there are some where is some heavy
DB stuff or file based logging
and some have CPU/memory intensive applications
greetings
Heiko
>>>> Heiko <rupertt@xxxxxxxxx> 2009/01/05 23:57 >>>
> On Mon, Jan 5, 2009 at 2:52 PM, Thomas Halinka <lists@xxxxxxxxx> wrote:
>> 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.
>>
>>>
> Hello,
>
> what are the specs of your system, how much rum and CPU do you have?
> What exactly do you mean with the xm start/stop-behaviour?
>
>
>
>>> 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.
>>
> Well,
>
> when I look at xm top, the VM dont even take 1% in CPU usage most of
> the time, and between 12% and 40% of the memory,
> The dom0 CPU jumps to sometimes to 10%
> when I can trust these values there is a lot ,more we can do on these
> machines with some more RAM.
>
>
> cheers
>
>
>>> greets
>>
>> Regards,
>>
>> Thomas
>>
>>
>
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