TITLE: 941216 OS/2 WARP ENHANCED IDE SUPPORT

                                                    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

 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
  provides BIOS translation for
  system without translated BIOS

* IBM Systems with translated BIOS include Valuepoint and IBM
  Mobile

** On Track will have a OS/2 filter that provides translation at
   Warp ship.  This filter will be shipped with On Track other
   Enhanced IDE Utilities with WD and IBM hard files for use on
   systems that do not have translated BIOS.  In the meantime
   we have worked with On Track to have FDISK identify the
   signature (45H) to prevent corruption.