xen-users
Re: [Xen-users] How many guests
Hi Michael,
Thanks for your email.
This is just an idea that I have floating around in my head that maybe
I'd like to rent out some VPSs to customers, just to utilise my machine
which will be sitting in a co-lo nearly idle.
I'd give out VPSs with 256MB RAM and probably 5Mbps connection speed.
So the answer is, I don't know what will be running on them, however I
could write up an "acceptable use policy", as well as use some
throttling/scheduling?
Thanks
On 06/06/10 19:39, Michael Schmidt wrote:
Hi Jonathan,
the question is, what a kind of VM?
You can over-utilize a much greater machine with one VM.
Or on the other side, you can run 40 VMs on a shorter machine.
Each ressource can be a bottleneck
- Memory - this is realy easy to calculate: Avaiable minus 768MB
(Reserved for Dom0 should be enugh in this case).
- CPU - Here we need a VM statistic
- Disk Bandwidth - Here we need a VM statistic, but in the most cases
not the bottleneck
- Disk IOPS - Here we need a VM statistic, in the most cases the
botelneck
What a kind of VMs you plane to run?
Webservers / mailservers / database-servers ...?
Best Regards
Michael Schmidt
Am 06.06.10 00:54, schrieb Jonathan Tripathy:
Hi Everyone,
I have a Dell R210 server which has a Xeon X3430 Quad Core CPU
(2.4Ghz x 4) with 8GB of RAM. I intend to use the H200 controller in
a RAID1 setup
How many VMs do you think I'd be able to run on this machine? Is 20
pushing it?
I'd say most (if not all) guests would be in PV mode.
Thanks
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