[Users] Fwd: oVirt or RHEV ?

Sat Feb 8 09:43:56 UTC 2014

----- Mail transféré -----

De: "Nathanaël Blanchet" <blanchet at abes.fr> 
À: "René Koch" <rkoch at linuxland.at> 
Envoyé: Samedi 8 Février 2014 10:41:56 
Objet: Re: [Users] oVirt or RHEV ? 

Hi René, thanks for your answer. 
My first idea wasn't to redistribute a repackaging of RHEV, but to bring a more stable build of rhev than the one from ovirt. My idea was to do the same as other project such as centos or scientific linux with RHEL. Yes they have removed all Red Hat trademarks, it seems to be a hard work. I began yesterday, I met a lot of dependance issues, you're right I can't waste such a time with this kind of work alone, a collaborate work would be better, but unuseful because of the ovirt project. That's why I think centos make a very great job. 

----- Mail transféré -----

De: "René Koch" <rkoch at linuxland.at> 
À: "Nathanaël Blanchet" <blanchet at abes.fr>, "Martijn Grendelman" <martijn.grendelman at isaac.nl> 
Cc: users at ovirt.org 
Envoyé: Vendredi 7 Février 2014 23:58:48 
Objet: Re: [Users] oVirt or RHEV ? 

Hi Nathanaël, 

Imho you need a lot of manpower to make this happen. 

You have to remove all Red Hat trademarks if you want to distribute it - this means remove it from RHEV-manager (engine), RHEV-H (node-image) and all Windows tools (e.g. USB policy editor, RHEV tools,...) so you not only need CentOS 6 build servers, but also Windows ones. 

Next you should have to support each release for 3 years which means in 2 years you maybe have to build packages for 3-6 RHEV releases - again takes a lot of time. Even if you can automate fetching, building and testing you still have to test it manually, too. 

I'm unsure if someone would do this work. Just speaking for me and the company I work for - RHEV and oVirt is working fine for us, so I wouldn't see much benefit of repackaging RHEV. Contributing to oVirt project with Nagios plugins, presentations, meetups,... makes more sense for us. Again just speaking about us, but I think other companies think in a same way... 

Regards, 
René 

On 07.02.2014 10:33, Nathanaël Blanchet wrote: 

Hi everybody, 

We could consider a third way : why not building RHEV from SRPMs since redhat provides them on ftp://ftp.redhat.com/redhat/rhev-m/3.x/SRPMS/ ? this can be a compromise between stability of rhev and ovirt free of charge. 
I'm surprised that nobody has got this idea before. 

Le 06/02/2014 19:53, René Koch a écrit : 

<blockquote>
Hi Martijn,

That's a good question and not too easy to answer.
I work as a Solution Architect and my company is selling both - RHEV and
oVirt consulting and support. The reason for doing both is, that we want
to give users a choice which solution fits better.

The main benefits (in my opinion) of RHEV are:

- Support with SLAs
Red Hat provides support for RHEV with service levels. For oVirt you
have to wait until someone of the developers or community members helps
you on the mailing list or in IRC (or you buy support from a company
with provides it).

- Updates for each release for 3 years
You receive for all releases (RHEV 3.1, 3.2,...) 3 years of support and
updates. oVirt provides bugfix releases for the actual release (so you
want get bugfix updates for 3.2 anymore, you have to upgrade to 3.3).
For me this is the biggest advantage of RHEV.

- Red Hat Knowledge Base
Red Hat Knowledge Base is one of the best knowledge bases and it helps
you greatly solving issues and gives useful tips. I use the knowledge
base a lot and wouldn't want to miss it for any Red Hat product.

- Stability
RHEV is tested by a qa team and the releases are really stable. oVirt
has newer features which are less tested. I upgrade oVirt release only
to .1 releases (e.g. 3.2.x -> 3.3.1), not to .0 to avoid issues.

- Guest agents
Guest agents and RHEV tools are packaged for RHEL and Windows guests and
are working fine. When using oVirt you miss some of the functionality of
Windows guest tools or have to copy it from different locations. For
other os'es it doesn't matter if using RHEV or oVirt.

- Application / os support
You should consider if your applications and operating systems are
supported in oVirt as well. All apps certified for RHEL are certified
for RHEV as well.

Main benefits of oVirt:

- Newest features
oVirt gives you the latest and greatest. So it will take some time until
this feature is available in RHEV, too (due to testing).

- No subscription coasts
You don't have to buy subscriptions for an oVirt environment, so it
saves money. But on the other hand it can also cost you more money, if
you have to spend a lot of time in troubleshooting or with upgrading
(especially with possible upgrading issues) or having down times of your
environment.

It's not too easy to say if you should use RHEV or oVirt.
I hope I could help you making a decision with my explanations above.
You could also have both - a RHEV setup for production vms and an oVirt
setup for development and qa vms.

Regards,
René

On Thu, 2014-02-06 at 16:06 +0100, Martijn Grendelman wrote: 
<blockquote>
Hi,

This may be the wrong place to ask, but I'm looking for input to form an
opinion on an "oVirt or RHEV" question within my company.

I have been running oVirt for about 5 months now, and I'm quite
comfortable with its features and maintenance procedures. We are now
planning to build a private virtualization cluster for hosting clients'
applications as well as our own. Some people in the company are
questioning whether we should buy RHEV, but at this point, I can't see
the benefits.

Can anyone on this list shed a light on when RHEV might be a better
choice than oVirt? What are the benefits? The trade-offs?

I am looking for pragmatic, real-world things, not marketing mumbo
jumbo. That, I can get from redhat.com ;-)

Best regards,
Martijn.
_______________________________________________
Users mailing list Users at ovirt.org http://lists.ovirt.org/mailman/listinfo/users 

_______________________________________________
Users mailing list Users at ovirt.org http://lists.ovirt.org/mailman/listinfo/users 
</blockquote>

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</blockquote>

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