Unlike Nova, Cinder does not support calling the 'os-migrate_volume'[1] action without a host or a cluster. For volume migrations of type 'migrate' in watcher the dst_pool is required, but for other migrations that migrate the volumes to different types is not needed. This change checks if the dst_pool is defined and prevents some migrations when it's misssing information. Adds testing for creating audits with the Zone Migration status, validating the schema changes. [1] https://docs.openstack.org/api-ref/block-storage/v3/index.html#migrate-a-volume Closes-Bug: 2108988 Change-Id: I305c58e47093c4a884e86f1d91fdc15ef2a1cfba Signed-off-by: jgilaber <jgilaber@redhat.com>