+#
+# This and set_obdfilter_param() shall be used to access OSD parameters
+# once existed under "obdfilter":
+#
+# mntdev
+# stats
+# read_cache_enable
+# writethrough_cache_enable
+#
+get_obdfilter_param() {
+ local nodes=$1
+ local device=${2:-$FSNAME-OST*}
+ local name=$3
+
+ do_nodes $nodes "$LCTL get_param -n obdfilter.$device.$name \
+ osd-*.$device.$name" 2>&1 | grep -v 'Found no match'
+}
+
+set_obdfilter_param() {
+ local nodes=$1
+ local device=${2:-$FSNAME-OST*}
+ local name=$3
+ local value=$4
+
+ do_nodes $nodes "$LCTL set_param -n obdfilter.$device.$name=$value \
+ osd-*.$device.$name=$value" 2>&1 | grep -v 'Found no match'
+}
+