[openstack-dev] Migrating offline instances

Paul Carlton paul.carlton2 at hpe.com
Mon Sep 21 13:09:48 UTC 2015


Live migration using qemu only operates on running instances.  However when a cloud operator wants to move all instance off a hypervisor they need to be able to migrate stopped and suspended instances
too.  We achieved this by bringing these instances to a paused state while they are migrated using the 'VIR_DOMAIN_START_PAUSED'.  I see fromhttps://review.openstack.org/#/c/85048/  that this idea has
been rejected in the past but my understanding is there is still no solution to this issue in libvirt?  Is there work in progress to implement a capability for libvirt to migrate offline instances?

-- 
Paul Carlton
Software Engineer
Cloud Services
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