+B<Defunct!> Select volumes from which to collect snapshot information.
+
+Repeat this option to specify multiple volumes.
+
+=item B<IgnoreSelectedSnapshot>
+
+Specify whether to collect only the volumes selected by the B<Snapshot> option
+or to ignore those volumes. B<IgnoreSelectedSnapshot> defaults to B<false>.
+However, if no B<Snapshot> option is specified at all, all capacities will be
+selected anyway.