[one-users] Pending state issues

[Madhurranjan Mohaan]

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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