@@ -276,6 +276,19 @@ function configure_cinder() {

             echo "$CINDER_GLUSTERFS_SHARES" > $CINDER_CONF_DIR/glusterfs_shares

         fi

     fi

+

+    if [[ is_fedora && $DISTRO =~ (rhel6) ]]; then

+        # Cinder clones are slightly larger due to some extra

+        # metadata.  RHEL6 will not allow auto-extending of LV's

+        # without this, leading to clones giving hard-to-track disk

+        # I/O errors.

+        # see https://bugzilla.redhat.com/show_bug.cgi?id=975052

+        sudo sed -i~ \

+            -e 's/snapshot_autoextend_threshold =.*/snapshot_autoextend_threshold = 80/' \

+            -e 's/snapshot_autoextend_percent =.*/snapshot_autoextend_percent = 20/' \

+            /etc/lvm/lvm.conf

+    fi

+

 }

 # create_cinder_accounts() - Set up common required cinder accounts