[Openstack] Hot and Cold migrations between zones or regions
Scott C. Sanchez
scottsanchez at gmail.com
Mon Aug 18 13:24:51 UTC 2014
The better way to accomplish a "live" migration in the cloud isn't to rely
on your hypervisor or moving VM images, but to use configuration management
(Chef, Puppet, Salt, Ansible, home grown, etc) to deploy a fresh
configuration and deployment of your app in the new environment, sync the
data, change the DNS, and then turn off the deployment in the zone. Much
the same way folks embracing devops would move from dev to test, or from
staging to production. That way your app becomes truly portable and much
more 'cloudy'... the more you can abstract how you manage your app from the
underlying infrastructure, the happier you'll be long term in a cloud
Hope that helps!
On Mon, Aug 18, 2014 at 7:54 AM, Jyoti Ranjan <jranjan at gmail.com> wrote:
> It depends upon which hypervisor you do use. For e.g. if you are ESX then
> they have concrete solution to migrate VMs (you can configure your data
> center like that). But, it we are using KVM hypervisor then something is
> cooking in direction and migration is not fully automated.
> On Mon, Aug 18, 2014 at 2:55 PM, Pieter Koorts <pieter.koorts at me.com>
>> I have been searching for some time and nothing conclusive found yet so
>> posting my question to lists.
>> I understand that OpenStack can be split into availability zones and then
>> regions so for example sake a zone is different data-hall's or racks within
>> the same data centre and a region is another country or data centre.
>> Is it possible to live migrate a virtual machine from one zone to another?
>> Same question I suppose could apply to a region but I understand
>> networking could be an issue if the region is a different network?
>> Mailing list:
>> Post to : openstack at lists.openstack.org
>> Unsubscribe :
> Mailing list:
> Post to : openstack at lists.openstack.org
> Unsubscribe :
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