my @servers = (
     {
          type      => production | development,
          env       => Windows | unix | Database,
          hostname  => the hostname
          targets   => [
                name1 => [ #total, #free ].
                name2 => [ #total, #free ],
                ...
          ],
     },
     {
          type      => production | development,
          env       => Windows | unix | Database,
          hostname  => the hostname
          targets   => [
                name1 => [ #total, #free ].
                name2 => [ #total, #free ],
                ...
          ],
     },
     ...
);