[ovirt-users] Multiple datacenters design

Mon Sep 8 21:14:06 UTC 2014

<html><bodyThanks to all for their experiences. I'm giving up one central Engine.
ManageIQ seems to be exciting option with more possibilities of usage.

Luf

Itamar Heim píše v Po 08. 09. 2014 v 17:45 +0300:
> On 09/08/2014 12:54 PM, Finstrle, Ludek wrote:
> >
> > Hi,
> >
> > I'm quite new to ovirt and I'm going to deploy ovirt into several tens
> > location all around world.
> >
> > The connection between locations is neither dedicated nor 100% reliable
> > as it's connected via internet.
> > I'm going with Gluster storage domains mainly.
> > It's not important to me to do live migrations or even offline
> > migrations between locations (they're independent).
> >
> > What's the best design and components from your point of view? I believe
> > I'm not the first one with such design.
> >
> > I think about two possibilities:
> > 1) One central Engine
> > - how to manage guests when connection drop between engine and node
> > - latency is up to 1 second is it ok even with working connection?
> >
> > 2) Engine in every location
> > - is it possible to have also one central point with information
> > from all engines together (at least read-only)?
> > - what about central reporting at least?
> >
> > I like more one central Engine. My concern is how to work with consoles
> > and also just 1 ISO storage domain and 1 export storage domain (maybe
> > same hostname for ISO and export in every location). Another topic is
> > how to reach console/stop/start/migrate guest inside location while
> > there is connection down between the only Engine and nodes in the
> > location.
> >
> > Thanks ahead for you experience/ideas,
> >
> 
> we run this with central engine and remote clusters, but remote clusters 
> have decent connectivity.
> 
> oVirt 3.5 does bring several improvements to fencing management which 
> may help those with problematic links.
> 
> for option #2 - ManageIQ (upstream of Red Hat CloudForms) is a "CMP" - 
> Cloud Management Platform, which can provide overall dashboard, 
> self-service, service catalog, automation, etc. across multiple ovirt 
> deployments.
> (they just released their first upstream release last week)
> 

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