please consider the code as absolutely not tested and be             
 very careful. so far i have used it on adaptec 2940 and 15XX,        
 ibm scsi w/wo cache with my maxoptix t4-2600. i have only 1024 b/s   
 media. 2048 and dynamic change of 512/1024/2048 was not              
 tested. please keep the distribution under control (do not put       
 the package on the net). there are two reasons:                      
                                                                      
 1) i do not want to distribute not tested code;                      
 2) that was my home project - i am not responsible for such          
    type of work in ibm, and being an ibm employee i may              
    violate ibm internal rules by distributing something from         
    myself. the whole procedure is not clear for me at the moment...  

 command line options:                                                      
                                                                            
 /q      quiet;                                                             
 /v      verbose;                                                           
 /!N     skip device number N, do not virtualize device number N; 
 /lr{:N} lock removable, locks media in removable device(s);                
 /od{:N} optical to disk, reports optical(7) device(s) as disk(0) device(s);
                                                                            
 the last two options are not required with newdasd package. os2dasd.dmd    
 from newdasd provides it's own /of and /rf options.                        
                                                                            
 please use /v switch - it will show you device numbers. in order to be able 
 to read the output you will need pause.sys added to your config.sys as a 
 first line:                   
                                                                            
 DEVICE=C:\PAUSE.SYS                                                        
 IFS=C:\OS2\HPFS.IFS ....                                                   
 .                                                                          
 .                                                                          
 .                                                                          
                                                                            
 you may place N512DASD.FLT just before OS2DASD:                            
                                                                            
 .                                                                          
 .                                                                          
 .                                                                          
 BASEDEV=XDFLOPPY.FLT                                                       
 BASEDEV=N512DASD.FLT /v                                                    
 BASEDEV=OS2DASD.DMD /of /rf                                           
 .                                                                     
 .                                                                     
 .                                                                     
                                                                       
 after booting with N512DASD.FLT you should see one more HD, which you 
 will need to partition and so on...                                   

 regards,
 alexander.