[openstack-dev] [Openstack] [block migration] How to test kvm block migration feature?

John Garbutt john at johngarbutt.com
Tue Mar 5 13:55:38 UTC 2013


Just to clarify, I don't think those flags are need for the
XCP/XenServer block migration, it goes straight to the chosen SR on
the destination.

I would agree, there probably should be a block migration section under KVM too.

John

On 1 March 2013 10:24, Blair Bethwaite <blair.bethwaite at gmail.com> wrote:
> On 1 March 2013 18:59, Qinglong.Meng <mengql112233 at gmail.com> wrote:
>>
>>      I want to make testing about openstack(release F) block migration
>> based KVM. But I don't any usefully configure doc. it's only about based
>> XEN.
>>     here is the org doc:
>>
>> http://docs.openstack.org/folsom/openstack-compute/admin/content/configuring-migrations.html
>
>
> I think the section headed "Block Migration" is incorrectly nested under
> "XenServer", or there should also be a "Block Migration" section under
> "KVM-Libvirt". Also missing are the nova flags you should have:
> block_migration_flag=VIR_MIGRATE_UNDEFINE_SOURCE, VIR_MIGRATE_PEER2PEER,
> VIR_MIGRATE_NON_SHARED_INC, VIR_MIGRATE_LIVE
> That, along with the other changes mentioned in the section (obviously
> excluding shared storage), should give you live block-migration.
>
> --
> Cheers,
> ~Blairo
>
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