Blueprint changed by OpenStack Hudson: Whiteboard changed: Once host-aggregates is complete, we can use the XenServer/XCP pool concept, along with shared storage configured as the default storage on that pool, to allow live migration of some images. Currently Amazon style three part images are loaded into Dom0's file system, so there would need to be lots of work to copy these between the hosts to ensure the VM can boot. As a first step, it is best to concentrate on images without an external kernel and ramdisk. **** Currently working in this branch: https://github.com/citrix-openstack/nova/tree/live-migration-trunk **** Here is what I plan to do next: * Step 1: Pool-based live migration (pool/host-aggregate, requires shared storage is default SR) * Step 2: Refactor live migration checks so libvirt checks are not in common code path * Step 3: Add tests into Tempest for live migration Maybe things for post-Folsom: * Support live migration with external ram disk and kernel * Live-migration without specifying the destination + + + Gerrit topic: https://review.openstack.org/#q,topic:bp/xenapi-live-migration,n,z + + + Addressed by: https://review.openstack.org/8329 + blueprint xenapi-live-migration
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