Adaptec AHA-1740A - Manual (Page 52)

When to Use Extended Translation
With DOS Version 5 Only
NetWare 386

and the newer versions of UNIX do not share the
1024 cylinder limit of DOS and do not require extended transla-
tion to support large disk drives. OS/2 does not currently support
extended translation.
Drives With Mixed Partitions
Do not use extended translation on drives formatted with two or
more partitions for different operating systems. Use standard
translation. The sum of the DOS partitions will be less than 1
Gigabyte. Partitions for UNIX and NetWare can be larger than 1
Gigabyte when using standard translation.
Note
UNIX is understood to be ATT/USL all versions, SCO v3.2.4 (or
later) and ISC v3.0 (or later).
Using Extended Translation
CAUTION
If you have already partitioned a large disk drive with one
translation method, conversion to another method will erase
your data. Be sure to back up your disk drive prior to any
change in the translation method used.
adaptec AHA-1740A/1742A/1744
A-2