Hi, all: I have planned to add the support to create qcow2 format file in NFS driver ([1]). From the comment of Eric Harney, I know that cinder-backup service currently assumes the volume is raw-formatted, and enable creating qcow2 in NFS driver will break backups of NFS volumes .
After reading the code of backup service, I find we can first mount the qcow2 volume as a NBD device and then pass the NBD device as the "source volume_file" to backup service. Similar method of mounting qcow2 as NBD device has already used in Nova now. I think we can add it to NFS driver for backup, and it can be used for GlusterFS too. Any advice? Is there something I have not expected? [1] https://review.openstack.org/#/c/92011/ ---------- zhangleiqiang (Trump) Best Regards _______________________________________________ OpenStack-dev mailing list OpenStack-dev@lists.openstack.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev