[openstack-dev] [OpenStack-dev][Nova][Discussion]Blueprint : Auto VM Discovery in OpenStack for existing workload

Russell Bryant rbryant at redhat.com
Sun Nov 3 03:55:27 UTC 2013


On 10/31/2013 04:45 AM, Alan Kavanagh wrote:
> Sorry Russell but I have to ask, what is the different you see between "traditional datacenter virtualization" and "cloud". IMHO the two co-exist and Cloud (the buzz word that it is) is the umbrella for all encompassing data center. That said im still missing why this would not be a useful feature for us?

This distinction is actually *really* important.

Here is one talk that discusses the difference:

"If you can only take one thing away from this presentation, hopfully,
it will be the ability to understand the difference between an elastic
cloud and enterprise virtualization."

http://www.youtube.com/watch?feature=player_detailpage&v=2E0C9zLSINE#t=1418

My point in bringing this up is that if you have existing long running
VMs that you really don't want to stop or move, then you're probably
talking about workloads more appropriate for enterprise virtualization.
 In an elastic cloud workload world, this use case just doesn't make sense.

If it's about disaster recovery, that's a bit different, but as Daniel
Berrange pointed out in this thread, this is just part of that picture,
and probably not the place to start.

-- 
Russell Bryant



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