$VAR1 = { 'server1' =>
               { 'part1' =>
                      { total => 300,
                        free => 100,
                        used => 200 } },
          'server2' =>
               { 'part1' =>
                      { total => 200,
                        free => 100,
                        used => 100 },
                 'part2' =>
                      { total => 400,
                        free => 100,
                        used => 300 } } };