As a note: There was a (now abandoned) spec for the removal of the device from the os-volume_attachments call, that could be re-proposed https://review.opendev.org/c/openstack/nova-specs/+/765097
As a note: There was a (now abandoned) spec for the removal of the device from the os-volume_ attachments call, that could be re-proposed https:/ /review. opendev. org/c/openstack /nova-specs/ +/765097