[CentOS-virt] Reading the new 6.0 manual - now questions
Alain Péan
alain.pean at lpp.polytechnique.fr
Fri Jun 17 11:35:16 EDT 2011
Hi Steve,
Le 17/06/2011 17:22, Steve Campbell a écrit :
> Firstly, it occurred to me that Centos 6 might not provide the
> virtualization rpms like it did with Centos 5. RH makes this an add-on
> to their license. Does anyone know if the upcoming Centos 6 will provide
> the virtualization packages (right away or in the future)?
I installed SL 6.0 on one of my machines, and indeed it provides KVM
(Description in French):
# yum groupinfo virtualization
Loaded plugins: refresh-packagekit
Setting up Group Process
epel/group_gz
| 201 kB 00:00
Group: Virtualisation
Description: Fournit un environnement afin d'héberger des clients
virtuels.
Mandatory Packages:
qemu-kvm
Optional Packages:
qemu-kvm-tools
I think CentOS will do the same for 6.0.
> Secondly, I'm not sure I understand the CPU allocation stuff. If I have
> 6 cores, it appears I can only create VMs that use 6 cores total. Using
> the GUI for creating a new VM will provide me with a max number I can
> allocate. Does this mean that I can allocate, for example, 3 VMs that
> use 2 cores each and never be able to create any other new VMs or does
> this mean I can create as many VMs as I want but only start VMs that
> use the max total cores or less?
You can assign multiple VMs to one CPU. For example, you can have a
hostmachine with dual-CPUs quadcore, and have 15 VMs or more installed
on it, and some of them assigned with two cores or more. It is only more
threads on a core.
Alain
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Alain Péan - LPP/CNRS
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