[Openstack-operators] Live-migration multinode kilo

David Medberry openstack at medberry.net
Wed Jun 10 12:13:55 UTC 2015

There are two kinds of live migration, with shared storage and without
shared storage. If you don't have shared storage (like CEPH or glusterfs or
NFS) you need to pass in the --block-migrate flag to manually copy the
volumes across. (It can be slow.)

For info on doing this with CEPH:


In general:

On Wed, Jun 10, 2015 at 5:40 AM, Abhishek Talwar <abhishek.talwar at tcs.com>

> Hi Folks,
> I have done a *multinode Kilo installation (with controller node, network
> node, 2 compute nodes)*. Now I am trying for a live-migration from one
> host to the other. But I am getting an error :
> ERROR (BadRequest): host1 is not on shared storage: Live migration can not
> be used without shared storage.
> (HTTP 400) (Request-ID: req-58b8122f-fa2e-4435-bc90-daa26146d314)
> *So how can we configure shared storage? Do we need to a have a storage
> node too i.e. Cinder ?*
> Regards
> Abhishek Talwar
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