describes the output returned. B<updatev> returns a list of any and all
consolidated data points (CDPs) written to disk as a result of the
invocation of update. The values are indexed by timestamp (time_t),
-RRA (index number), and data source (name). Note that depending
-on the arguments of the current and previous call to update, the
-list may have no entries or a large number of entries.
+RRA (consolidation function and PDPs per CDP), and data source (name).
+Note that depending on the arguments of the current and previous call to
+update, the list may have no entries or a large number of entries.
=item I<filename>