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 an 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 (Promise_DC4030VL-2_1-41.zip).

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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