[one-users] Pending state issues

[Carlos Martín Sánchez]

Hi Madhurranjan,

Regarding your first question, you can't modify an existing VM. You'll have
to modify the source template, and then shutdown the current VM and create a
new one.

About the second one, your proposal seems reasonable. I'd say that the
optimal values depend basically on your infrastructure and the kind of
workload you'll have to deal with; so I can't really help here.


Regards,
Carlos.
--
Carlos Martín, MSc
Project Major Contributor
OpenNebula - The Open Source Toolkit for Cloud Computing
www.OpenNebula.org <http://www.opennebula.org/> | cmartin at opennebula.org


On Tue, Jun 21, 2011 at 10:57 AM, Madhurranjan Mohaan <
mohanma at thoughtworks.com> wrote:

> Hi All,
>
> I have had VMs in the pending state for a while and I went through this
> thread(
> http://lists.opennebula.org/pipermail/users-opennebula.org/2011-April/004680.html)
> and basically figured out that there are no CPUs left to allocate VMs,
> though there is plenty of RAM. Manual deployment works  I had 2 questions
> regarding this scenario:
>
> 1. I have close to 20VMs on one of the boxes and had allocated 1 CPU each ,
> so that has taken up 20CPUs. Overall the system has 16CPUs(4 CPUs  , each
> being a quad core). Now , can I re-allocate CPUs for these VMs to 50% or
> less than what they are currently ? Can I do this at all in the first place
> ? Require your thoughts on this point.
>
> 2. What is a good allocation number for CPUs ,if I want to create something
> like "Small" , "Medium" and "Big" VMs ? I can do this with RAM since the box
> has good amount of RAM but not sure what parameters I should take for CPU.
> The CPU in my case seems to be the factor that doesn't allow more VMs to be
> allocated by the scheduler. Can I have for eg,
> Small VM - 0.25 CPU
> Medium VM = 0.5 CPU
> Large VM - 1 CPU
>
> thanks
>
> Madhurranjan
>
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>
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