[Openstack] Live Migration of VMs without shared storage

somshekar kadam som_kadam at yahoo.co.in
Thu Feb 26 15:13:40 UTC 2015

Thanks John, its very useful, working on it

     On Thursday, 26 February 2015 8:21 PM, John Griffith <john.griffith at solidfire.com> wrote:


On Thu, Feb 26, 2015 at 7:07 AM, somshekar kadam <som_kadam at yahoo.co.in> wrote:

First of all thanks for quick reply. 
Documentation does not mention much about Volume-backed live migration. 
Is it tested, I mean supported and working. 
I will try Block live migration as no storage is required. 

     On Thursday, 26 February 2015 7:13 PM, Robert van Leeuwen <Robert.vanLeeuwen at spilgames.com> wrote:

 > Is the Live Migration of VMs even without shared storage supported in Openstack now.
> If yes is there any document for the same.

Wel, depends on what you call "supported".
Yes, it is possible. 
Will it always work? Probably not until you look at the bugs below.
They have been fixed recently but they might not be merged with the version you are running: 

There might be more issues but I hit the ones mentioned above.
Have a look at the docs to configure it:

Robert van Leeuwen


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It's dated and getting the patches backported has proven to take forever, but I did a write up and testing on this a while back [1].  Should still be accurate.
[1]: https://griffithscorner.wordpress.com/2014/12/08/openstack-live-migration-with-cinder-backed-instances/

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