number of terabytes
+=item C<nn>P or C<nn>PB
+
+number of petabytes
+
+=item C<nn>E or C<nn>EB
+
+number of exabytes
+
=item C<nn>sects
number of 512 byte sectors
number of terabytes
+=item C<nn>P or C<nn>PB
+
+number of petabytes
+
+=item C<nn>E or C<nn>EB
+
+number of exabytes
+
=item C<nn>sects
number of 512 byte sectors