diff --git a/ceilometer/volume/notifications.py b/ceilometer/volume/notifications.py
index 3a57fe3fe..b58a81e3b 100644
--- a/ceilometer/volume/notifications.py
+++ b/ceilometer/volume/notifications.py
@@ -36,7 +36,7 @@ cfg.CONF.register_opts(OPTS)
 
 
 class _Base(plugin.NotificationBase):
-    """Convert compute.instance.* notifications into Counters
+    """Convert volume notifications into Counters
     """
 
     metadata_keys = [
diff --git a/doc/source/install/development.rst b/doc/source/install/development.rst
index e49daf810..690258de7 100644
--- a/doc/source/install/development.rst
+++ b/doc/source/install/development.rst
@@ -44,7 +44,12 @@ Configuring Devstack
    instances by default. To enable these auditing events, set
    ``instance_usage_audit`` to true in the nova configuration file.
 
-4. The ceilometer services are not enabled by default, so they must be
+4. Cinder does not generate notifications by default. To enable
+   these auditing events, set the following in the cinder configuration file::
+
+      notification_driver=cinder.openstack.common.notifier.rpc_notifier
+
+5. The ceilometer services are not enabled by default, so they must be
    enabled in ``localrc`` before running ``stack.sh``.
 
 This example ``localrc`` file shows all of the settings required for