OpenStack Compute (nova)

Nova / Bexar is it really usable ?

Asked by Laurent Borensky

Hello,

I installed Nova / Austin several months ago, but it was impossible to manage (create, stop, ...) virtual machines. Does version Nova / Bexar is more reliable and is it able to run multiple VMs on several different nodes (Xen or KVM, XenServer, Hyper-V)?

Thank you

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Ewan Mellor
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Josh Kearney (jk0) said : 		#1

Yep, it should in fact run all of those without issue. Let us know if you run into any problems and we'll be glad to help.

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Laurent Borensky (laurent-borensky) said : 		#2

OK, thank you.

We want to create a Proof of Concept. We will install tall Nova services on a physical or virtual server, and Swift. We have two hypervisors; KVM on a first physical server and XenServer or Xen4.0 on a second physical server.

It Is a good context for evaluation?

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Josh Kearney (jk0) said : 		#3

I'm not sure Nova will work with Xen4.0 -- we have been testing it against 5.5 and 5.6fp1. Other than that, I think that would make a nice proof of concept.

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Laurent Borensky (laurent-borensky) said : 		#4

Sorry, Just a last question: Is it possible to use Xen 3?

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Josh Kearney (jk0) said : 		#5

Doubtful. I wouldn't go any lower than 5.5.

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Laurent Borensky (laurent-borensky) said : 		#6

Yes, but I think at Xen and not XenServer. It is possible to use Xen 3.4?

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Josh Kearney (jk0) said : 		#7

Nova currently only supports XenServer.

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Vish Ishaya (vishvananda) said : 		#8

Actually, nova should support xen through libvirt. This code path is largely untested though.

Vish

On Mar 2, 2011, at 11:39 AM, Josh Kearney wrote:

> Question #147430 on OpenStack Compute (nova) changed:
> https://answers.launchpad.net/nova/+question/147430
>
> Status: Open => Answered
>
> Josh Kearney proposed the following answer:
> Nova currently only supports XenServer.
>
> --
> You received this question notification because you are a member of Nova
> Core, which is an answer contact for OpenStack Compute (nova).

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Best Ewan Mellor (ewanmellor) said : 		#9

XenServer uses Xen 3.4 underneath, so we know that the hypervisor works. You have three options:

XenServer, free to download, using OpenStack's XenAPI backend
Xen Cloud Platform, open source equivalent of XenServer, using OpenStack's XenAPI backend
Xen direct from Xen.org or from SLES or OEL or similar, using OpenStack's libvirt backend.

I'd recommend the first of these, but then I do work for Citrix ;-)

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Laurent Borensky (laurent-borensky) said : 		#10

Thanks Ewan Mellor, that solved my question.