OSINIDE - OS/2 WARP 3.0 ENHANCED IDE SUPPORT
01/11/96

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                  OS/2 Warp 3.0 Enhanced IDE Support
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Please Read Entire Document for Full Explanation of Procedures
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DESCRIPTION

OS/2 Warp 3.0 Enhanced IDE Support

RESOLUTION

                                                    Systems with
                              Native Support      Translated BIOS*
 
Enhanced IDE Feature            DOS    OS/2           DOS    OS/2
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DRIVES > 1024 CYL (> 528 MB)
 BOOT PARTITIONS < 1024 CYL     YES    YES            YES    YES

 ACCESS DISK PAST 1024 CYL       NO     NO            YES    YES
 ACCESS DISK PAST 1024 CYL       NO     NO            YES    YES

 LOGICAL BLOCK ADDRESSING        NO    YES             NO    YES
                               with parameters      with parameters
 For performance               /A:0 /U:0 /LBA       /A:0 /U:0 /LBA
 saves drive 3 multiplies

 FASTER PIO MODE                YES    YES            YES    YES

 DMA ADDRESSING                  NO     NO             NO     NO

  Not prevalent on controllers;
  advantage for EISA systems only

 WD UTILITY "ON TRACK"          YES     **             NA     NA
 WD UTILITY "ON TRACK"          YES     **             NA     NA

   IBM systems with translated BIOS include ValuePoint and IBM
   Mobile.

   On Track has an OS/2 filter that provides translation for
   OS/2 Warp. This filter is shipped with On Track and other
   Enhanced IDE utilities with WD and IBM hard disk drives
   for systems not having translated BIOS. Contact the vendor.

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