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Can I migrate VM between two datacenters with openstack

asked 2013-07-15 22:16:49 -0500

a.k. gravatar image

updated 2013-07-19 16:54:57 -0500

smaffulli gravatar image

I plan to build two small-scale data centers. I want to use openstack as the management platform for each data center. The two data centers have a layer 2 connection to each other. Can I migrate virtual machine instances between the two data centers with openstack?

In other words, there are two openstack controllers, for example controllerA and controllerB. Each of them controls several compute nodes/servers. Can I migrate instances from controllerA to controllerB's compute node? Does openstack support such migration? Or what can I do to implement the function?

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answered 2013-07-22 16:52:56 -0500

ken-hui gravatar image

As far as I know, there is no way to migrate instances between 2 distinct OpenStack Clouds. Your use case may be suited to using cells or regions so you can scale a single OpenStack Cloud. Assuming network latency allows it, you would be able to migrate VMs between compute nodes, managed by the same Nova controller or controllers. here is a short write-up from the Operations Guide... http://docs.openstack.org/trunk/openstack-ops/content/scaling.html#segregate_cloud.

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Asked: 2013-07-15 22:16:49 -0500

Seen: 2,768 times

Last updated: Jul 22 '13