--- a/usr/src/cmd/mdb/common/modules/zfs/zfs.c	Sat Nov 21 22:51:29 2009 -0800
+++ b/usr/src/cmd/mdb/common/modules/zfs/zfs.c	Sat Nov 21 23:44:56 2009 -0800
@@ -313,6 +313,8 @@
 		"zfs_vdev_max_pending",
 		"zfs_vdev_min_pending",
 		"zfs_scrub_limit",
+		"zfs_no_scrub_io",
+		"zfs_no_scrub_prefetch",
 		"zfs_vdev_time_shift",
 		"zfs_vdev_ramp_rate",
 		"zfs_vdev_aggregation_limit",