Xen devel - Nov 2007 - problem with running multiple guest domains

Dear developers,

 

I use Xen 3.1 / Debian Etch to build networking lab for the students in my
University. I need to run about 160 VMs for the current lab setup.

I have an acute problem, though, with running multiple Xen guest domains.
Namely, I can bring up only about 70 guest domains, then every additional VM
I try to start crashes, complaining it cannot find the root device. 

 

I have posted this question to the xen-users list, but nobody has responded
yet. Do you have any clue what might cause the problem or what can be done
to debug it?

 

Thanks in advance,

Arik

 

 

 

 




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What kind of virtual disks are you using for these domains?  file:, tap:aio, 
phy: or something else?

Cheers,
Mark

On Tuesday 20 November 2007, Arik Goldfeld wrote:
> Dear developers,
>
>
>
> I use Xen 3.1 / Debian Etch to build networking lab for the students in my
> University. I need to run about 160 VMs for the current lab setup.
>
> I have an acute problem, though, with running multiple Xen guest domains.
> Namely, I can bring up only about 70 guest domains, then every additional
> VM I try to start crashes, complaining it cannot find the root device.
>
>
>
> I have posted this question to the xen-users list, but nobody has responded
> yet. Do you have any clue what might cause the problem or what can be done
> to debug it?
>
>
>
> Thanks in advance,
>
> Arik


-- 
Dave: Just a question. What use is a unicyle with no seat?  And no pedals!
Mark: To answer a question with a question: What use is a skateboard?
Dave: Skateboards have wheels.
Mark: My wheel has a wheel!

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