- An instance which has config_drive set to True fails to live-migrate.
- The destination hypervisor reports the following error in /var/log/pf9/ostackhost.log.
ERROR oslo_messaging.rpc.server [...] Exception during message handling: InvalidSharedStorage: 0f15c8ad-bbeb-473b-9aa9-3bf38cc952d5 is not on shared storage: Shared storage live-migration requires either shared storage or boot-from-volume with no local disks.
- Platform9 Managed OpenStack - v3.6 - v3.11
Due to a limitation with the corresponding Libvirt version, a configuration drive using the ISO-9660 format cannot be live-migrated.
To migrate the instance, you will need to perform a cold (non-live) migration, or snapshot and re-create it.
As per the guidance outlined in the configuration drive format, you may be successful in leveraging the legacy VFAT format for future instances which require to be live-migrated with a config-drive attached.