OS2.INI, HPFS and PTI DC4030VL-2 IDE Caching Controller Card

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Last Updated: January 14, 1995

Symptoms

Workplace Shell is corrupted or does not come up upon booting OS/2. OS2.INI and OS2SYS.ini files become corrupted.

Hardware

Promise Technologies, Inc. DC4030VL-2 IDE caching controller card

Problem

The above mentioned caching controller card, when used in conjunction with the Promise Technologies PTI1S506.ADD device driver and OS/2 installed on a HPFS partition, will not correctly write the OS2.INI and OS2SYS.INI files to the \OS2 subdirectory. The following procedure assumes that your system consists of both FAT and HPFS partitions.

Procedure

A solution to this is to copy your OS2.INI and OS2SYS.INI files to a subdirectory on a FAT partition. Then in your CONFIG.SYS file for OS/2, edit the following lines to correctly reference the files in their new position, i.e.

Using a FAT partition D: and the files placed in \OS2 subdirectory ...

SET USER_INI=D:\OS2\OS2.INI
SET SYSTEM_INI=D:\OS2\OS2SYS.INI

Notes

The above procedure assumes that you're using the newest Promise Technologies device driver, version 1.41, dated 12-12-94. It is obtainable by calling the Promise Technologies, Inc. BBS at 1-408-452-1267 or by downloading the driver from various FTP sites (hobbes.cdrom.com and hobbes.nmsu.edu come to mind!).

For our controller BIOS setup, we have the Cache Mode set to ...

Turbo[Cache Enabled/Deferred Write]

and Disk I/O Handler set to ...

Turbo[DC4030VL-2 BIOS Remapped]

Remember to reset any ROM shadowing within the motherboard CMOS setup to account for the shadowing of the DC4030VL-2 BIOS.

We have been very pleased with the performance of this controller card within Warp, once the kinks were all worked out!

Refer to "Promise Technology Inc. Products and OS/2 Warp" for more recent information about current Promise drivers.

By bartling@millcomm.com

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