Live Migration

Live migrating an instance means moving its virtual machine to a different OpenStack Compute server while the instance continues running.

Live migration involves first creating a volume from an image through Cinder. This is visible on both Lightbits and OpenStack.

Server creation for live migration is illustrated below.

Before the migration, NVMe/TCP volumes will be as follows:

The live migration itself includes the following:

• Identifying the current compute host.

• Identifying other compute hosts.

• Migrating to other compute hosts.

After the migration, the NVMe/TCP volumes look as follows:

Finally, the live migration is verified, with a new compute host reported: