Copyright 2000, Compaq Computer Corporation
Adaptec SCSI Controller Support for IBM OS/2
Table Of Contents
1.0 Introduction
2.0 Controller Ordering
2.1 SCSI ID's
2.2 Partitioning
3.0 Installing
IBM OS/2 from CD-ROM
3.1 Using
the Compaq CD-ROM Installation Setup Utility
3.2 Manual
process to modify the CD-ROM installation Diskette 1
4.0 Adaptec SCSI Controllers
4.1 Supported controllers
4.2 Updating the driver
4.3 Ultra 3-SCSI
support
4.4 Maximum number of controllers
4.5 Resource Manager awareness
5.0 Command
Line Switches
6.0 Troubleshooting
7.0 Limitations
1.0 Introduction
This document contains information on the use of the SCSI controller drivers for
IBM OS/2 as published by IBM Corporation. These drivers work with the
ADD driver architecture and are not meant to be stand-alone drivers. All Storage controller
drivers are located on the OS/2 SSD in the \ADD directory of the OS/2 SSD
System and Storage Diskette.
The drivers are described briefly below:
AICU160.ADD: The AICU160.ADD driver supports disk, tape, and CD-ROM drives
with these SCSI Controllers
See here for Configuring Controller Order.
The following set of rules must be followed for the driver to function properly with other
storage controllers configured in the system.
NOTE:
These rules are NOT automatically enforced by the Compaq System Configuration
Utility. Follow them carefully when configuring the system.
1. All Compaq SCSI Controllers must be configured in consecutive controller order. This
includes the following SCSI Controllers:
2. To boot from a Adaptec SCSI Controller, it must be configured as `First` for the
controller order.
The system will always try to boot from the hard drive with the lowest SCSI ID. Set the
boot drive as SCSI ID zero (0). It is possible to have a tape drive or CD-ROM drive with a
SCSI ID lower
than the boot drive, but it is not recommended.
The AICU160.ADD driver supports up-to 14 target ID'S. For this support it is
necessary to have a back plane controller that can drive 14 targets.
See here for Partitioning Information.
3.0 Installing IBM OS/2 from CD-ROM
To install IBM OS/2 from CD-ROM on Compaq Servers may require modifying
Diskette labeled OS/2 Diskette 1. Please follow the instructions given below
3.1 Using
The Compaq CD-ROM Installation Setup Utility
The Compaq OS/2 SSD, v2.05 or later, ships with a utility to update the IBM installation
Diskette 1. The utility requires a computer already running OS/2. For complete
instructions, refer Cpqsetup Utility.
3.2 Manual
Process to Modify the CD-ROM Installation Diskette 1
To install IBM OS/2 from a CD-ROM drive on one of the systems listed in section
3.0,
complete the following:
1. Make a copy of the IBM installation diskette labeled Diskette 1. This diskette ships with
the
CD- ROM from IBM.
2. The appropriate ADD driver must be added to Diskette 1. Locate a machine with an operating
system already installed and insert the Compaq OS/2 System and Storage Drivers Diskette
into one of the floppy drives.
3. Copy the appropriate
ADD driver to the hard disk and then to the Installation Diskette 1. If there
is not enough room
on the Diskette 1, delete any ADD drivers or other files that are not required.
This may include,
IBM2*.ADD, SONY*.ADD, SB*.ADD, LM*.ADD, and FD*.ADD.
4. Edit the CONFIG.SYS file located on Diskette 1. At the end of file, add the appropriate line
for the
driver that was expanded in step 3:
BASEDEV=AICU160.ADD or
Insert the letters REM before any lines in the CONFIG.SYS file located on Diskette 1 that
refer
to the files deleted in step 4.
5. Return to the machine on which IBM OS/2 is to be installed. Begin the installation by inserting
the
Installation Diskette into drive A and starting the computer.
NOTE: During the installation process it is not necessary to modify the default value
for
"CD-ROM Device Support" or "SCSI Adapter Support" on the System Configuration screen.
The following is a list of SCSI Controllers supported by the AICU160.ADD driver:
Please follow the steps mentioned in Installing a Compaq OS/2 Driver
The AICU160.ADD driver supports Ultra speeds (up to 160 MBps)
on Ultra 3-SCSI hard disk drives. The hardware and software
that are required for running Ultra-3 speeds are:
1. Ultra-3 SCSI hard disk drives connected to
- Compaq 64-Bit/66-MHz Wide-Ultra3 SCSI Controller
- Compaq 64-Bit/66-MHz Dual Channel Wide-Ultra3 SCSI Controller
2. Adaptec SCSI Driver for OS/2, Version 10.1 or later
3. Compaq System Configuration Utility, Version 4.70 or later.
4. Compaq ProLiant Storage /U and /F Boxes for external controllers.
4.4 Maximum Number Of Controllers
The AICU160.ADD v10.1 can support up to 11 Adaptec SCSI controllers on
single Compaq server.
4.5 Resource Manager Awareness
The AICU160.ADD v10.1 is Resource Manager aware. The physical and logical
configuration information registered by the driver can be accessed using the "rmview.exe"
utility available at the OS/2 command prompt.
In certain situations you may want to modify the standard behavior of a SCSI ADD driver.
Software that requires the uses of command line switches should include instructions for
their uses. Most software does not require any switch
settings.
The syntax of the command line switches is:
BASEDEV=<DRIVER>.ADD /A:[adapter index] [unit parameters]
[adapter index] The adapter index of the controller. Adapters are numbered
consecutively, starting with 0. Adapter index "0" corresponds to the controller with the
lowest controller order. The controller order is assigned when running the Compaq System
Configuration Utility.
[unit parameters] Parameters to disable either OS2DASD.DMD or OS2SCSI.DMD support
or ignore a controller.
The following unit parameters are available:
/!DM:<SCSI ID> where <SCSI ID> is the SCSI ID of the device for which you want to disable
OS2DASD.DMD support. This may be a single SCSI ID or a list of IDs <SCSI ID>,<SCSI ID>.
/!SM:<SCSI ID> where <SCSI ID> is the SCSI ID of the device for which you want to disable
OS2SCSI.DMD support. This may be a single SCSI ID or a list of IDs <SCSI ID>,<SCSI ID>.
/I Ignore the specified adapter; do not control the adapter with this driver.
This parameter prevents the ADD driver from recognizing the specified adapter.
Use when you want to have another driver control a specific adapter.
/V Load the driver
in verbose mode. This parameter causes the driver to print information
to the screen when it loads. The driver will identify itself along with
the current revision.
Then information concerning the adapters and the devices attached them will
be displayed. (AICU160.ADD only)
Example 1
You have a tape drive on adapter 1 with a SCSI ID of 2 and two fixed disks on adapter 0
with a SCSI of 3 and
4. To prevent OS2SCSI.DMD from controlling the tape drive and
prevent OS2DASD.DMD from controlling the fixed disks, use the following statement:
BASEDEV=AICU160.ADD /A:1 /!SM:2 /A:0 /!DM:3,4
* The AICU160.ADD SCSI driver supports multiple Logical Unit Numbers (LUNs) per target
SCSI ID; but, the LUNs must be in sequential order starting at LUN 0.
* The driver MUST be loaded by a BASEDEV= statement in the CONFIG.SYS file, i.e.
BASEDEV=AICU160.ADD.
* When using IBM OS/2 v2.1 or later and CD-ROM devices, it is necessary to use the IBM
OS2CDROM.DMD driver (included with the base product). For SCSI tape support with
IBM OS/2 2.1, the IBM OS2SCSI.DMD driver is required. Check CONFIG.SYS for the required
DMD driver.
Example: DEVICE=OS2CDROM.DMD
* For CD-ROM support, the standard IBM OS/2 2.0 product provides a CD-ROM device
driver for IBM and Toshiba CD-ROM SCSI devices. Contact IBM for a more general
purpose CD-ROM driver (for data access only, no audio). The name of this general purpose
device driver is CDROM_G.SYS. IBM OS/2 2.1 has improved third
party SCSI CD-ROM
support that includes audio support.
* When using IBM OS/2 2.0 and CD-ROM or SCSI tape devices, it is necessary to use the
IBM OS2SCSI.DMD
driver (included with the base product).
This driver should be referenced
in the CONFIG.SYS
file. Check CONFIG.SYS and add
this line if it is not already present.
Example: BASEDEV=OS2SCSI.DMD
* When a ProLiant Storage System or the drive cage in a ProLiant Server is attached to an
adapter controlled
by AICU160.ADD, the disk tray on-line LED will be illuminated during
initialization unless the drive fails the test unit ready command. If a failure occurs during
initialization the failed LED will be illuminated.
if this occurs, run the Compaq
Diagnostics Utility.
* While OS/2 is running, the disk tray on-line LED will remain illuminated. If you suspect
a drive is failing, shutdown the system using the shutdown command. At this point,
the
on-line LEDs will be turned off, and if the last read or write command to a drive
failed,
the failed LED will
be illuminated. If any failed
LED is illuminated, run the Compaq
Diagnostic Utility.
* When using the /V verbose command line option on a system
running IBM OS/2 SMP v2.11,
the text is not reliably displayed.
* The System will stop loading at OS2DASD.DMD driver, if multiple AICU160.ADD driver entries are found in the CONFIG.SYS file. Ensure that there is only one entry of the driver in the CONFIG.SYS.
Copyright 2000, Compaq Computer Corporation
All rights reserved.
* OS/2 is a registered
trademark of the IBM Corporation.
Other product names mentioned herein may be trademarks or registered trademarks
of their respective companies.