MySQL partitionierte Tabelle auf mehreren Festplatten

CREATE TABLE `tabelle` (
`ID` int(11) NOT NULL auto_increment,
`Feld2` int(11) NOT NULL default '0',  
`Feld3` datetime NOT NULL default '0000-00-00 00:00:00',  
`Feld4` int(11) NOT NULL default '0',  
PRIMARY KEY  (`ID`, `Feld3`)
) ENGINE=MyISAM  DEFAULT CHARSET=latin1 AUTO_INCREMENT=19169294 ;

PARTITION BY RANGE ( MONTH(Feld3))
   SUBPARTITION BY HASH (TO_DAYS(Feld3)) (
     PARTITION p0 VALUES LESS THAN (4) (
     SUBPARTITION s0
     DATA DIRECTORY = 'D:\\__MySQL-Data\\dat\\p0'  
     INDEX DIRECTORY = 'D:\\__MySQL-Data\\idx\\p0',  
     SUBPARTITION s1
     DATA DIRECTORY = 'E:\\__MySQL-Data\\dat\\p0'  
     INDEX DIRECTORY = 'E:\\__MySQL-Data\\idx\\p0'  
   ),
     PARTITION p1 VALUES LESS THAN (8) (
     SUBPARTITION s2
     DATA DIRECTORY = 'D:\\__MySQL-Data\\dat\\p1'  
     INDEX DIRECTORY = 'D:\\__MySQL-Data\\idx\\p1',  
     SUBPARTITION s3
     DATA DIRECTORY = 'E:\\__MySQL-Data\\dat\\p1'  
     INDEX DIRECTORY = 'E:\\__MySQL-Data\\idx\\p1'  
   ),
     PARTITION p2 VALUES LESS THAN (13) (
     SUBPARTITION s4
     DATA DIRECTORY = 'D:\\__MySQL-Data\\dat\\p2'  
     INDEX DIRECTORY = 'D:\\__MySQL-Data\\idx\\p2',  
     SUBPARTITION s5
     DATA DIRECTORY = 'E:\\__MySQL-Data\\dat\\p2'  
     INDEX DIRECTORY = 'E:\\__MySQL-Data\\idx\\p2'  
   )
);