MIRROR_BUMP
MIRROR_BUMP(vdev_mirror_stat_non_rotating_linear);
MIRROR_BUMP(vdev_mirror_stat_non_rotating_seek);
MIRROR_BUMP(vdev_mirror_stat_rotating_linear);
MIRROR_BUMP(vdev_mirror_stat_rotating_offset);
MIRROR_BUMP(vdev_mirror_stat_rotating_seek);
MIRROR_BUMP(vdev_mirror_stat_preferred_found);
MIRROR_BUMP(vdev_mirror_stat_preferred_not_found);