[Openstack] Suggestion for lab environment

Md. Maruful Hassan mrf.mnm at gmail.com
Mon Oct 20 12:54:16 UTC 2014



I was actually running Virtualbox on top of Linux host. Sorry I should have
mentioned that.
When I started reading various docs relating to Openstack found lot of
people building lab
env on it. Also, it was the quickest to start with as I already had few VMs
running on it. But
now I understand (thanks to you for the pointers relating to various
components of VBox) the
setup of VBos wasn't probably the best one.

ESXi was/is definitely the better choice, I understand that. But that means
I'll have blow my
,unfortunately, only machine and re-install the ESXi on it. Just didn't
want to do that at the
start. But I like Don's idea to use KVM instead.

I'm just trying to learn openstack and really just looking for a 'useable'
vm instances running
on it (even if it runs under Vbox/KVM/esxi).



As mentioned above, I like the idea of running openstack on KVM. I'll head
in that way. Will see
how it goes. One question, do I still have to use libvirt_type=qemu on
compute node running
under KVM?


On Sun, Oct 19, 2014 at 6:26 AM, Don Waterloo <don.waterloo at gmail.com>

> On 18 October 2014 09:25, Md. Maruful Hassan <mrf.mnm at gmail.com> wrote:
>> Hi
>> Apologies if this has been answered previously.
>> I have a working Openstack setup on my VM lab environment running under
>> Virtualbox. The instances launched run very very slowly (specially CentOS,
>> RHEL, Fedora images). I choose KVM as the hypervisor for Openstack compute
>> node so
>> that means running KVM under virtualbox. However, I needed to put
>> libvirt_type=qemu (instead of KVM) in nova.conf as virtualbox doesn't pass
>> VT-X to guest OSs. Is the slowness caused by this? Should I choose
>> something else like Vmware instead of Virtualbox? Any suggestion?
>> Btw, virtualbox vdi files reside on SSD if this helps.
>> thanks
>> --
>> Maruf
> kvm supports running nested under kvm, but not under VirtualBox.
> So i think you want to run the 'host' on kvm. You are on the right track
> with the libvirt_type= comment.
> Your issue is that qemu is emulating the instructions.
> I normally run OpenStack in a kvm virtual machine on my Linux system and
> get very good
> performance. I don't believe it is possible to get good performance under
> VirtuallBox tho (since
> it doesn't pass the vt-x).
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