README.TXT for AMD OS/2 SCSI drivers for                          03-14-96 CDC
Toshiba DeskStation V and DeskStation V Plus

This ZIP file contains the following files:

 AMSIO2T.ADD    The OS/2 driver for the AMD SCSI host adapter in the
                Toshiba Deskstation V and DeskStation V Plus
 README.TXT     This file.  Contains installation instructions



Information:

The SCSI driver in this archive will work under OS/2 Warp with the AMD PCI 
SCSI host adapter in the new DeskStations (V and V Plus).  The .ADD driver 
here (AMSIO2T.ADD) has been tested for installation of and general use 
with CD-ROM and SCSI tape backup under OS/2 Warp on a Tecra 700CT attached to 
a DeskStation V.  This driver is advertised by AMD to support suspend/resume
commands of the APM spec.



INSTALLATION
=============================================================================
Prior to installing OS/2:

These instructions assume that you are installing OS/2 from a CD-ROM drive
attached to the AMD SCSI host adapter.  "Disk 1" refers to the diskette 
labeled "OS/2 Diskette 1 for CD-ROM" and NOT the "Installation" diskette.

This is the best way to do things and will make certain that the driver is
installed on future or multiple installs/reinstalls.

1)  Either use DISKCOPY to copy Disk 1 or make a fresh Disk 1 from the
OS/2 Warp CD-ROM using the LOADDSKF utility on the Warp CD-ROM disk.  Make 
sure you get the Disk 1 for the CD install.  Either way, modify the COPY and 
not the original.

2)  You'll need to make some space on Disk 1 for the driver.  Since OS/2 
includes support for numerous SCSI host adapters on the installation disk, It
is easy enough to delete some of these drivers for adapters that you don't
have.  For example, you could delete FD*.ADD (3 files).  These drivers are for
Future Domain SCSI adapters. If you don't have any of those adapters, OS/2 
won't miss them.

3)  Copy the AMSIO2T.ADD driver from this ZIP to Disk 1

4)  Next, you'll need to edit the CONFIG.SYS file on Disk 1.  Use your 
favorite text editor to remove the lines that load the drivers that you
deleted.  In the case of the Future Domain drivers in the example above, you
would remove the 3 lines that read:

 BASEDEV=FD*.ADD

Where the "*" is a wildcard representing the rest of the filename that is 
present in the CONFIG.SYS file.

Add a new line in that same group of BASEDEV statements that reads:

 BASEDEV=AMSIO2T.ADD

Save the file and exit the editor.

5)  Install OS/2 Warp using the Disk 1 that you just modified in place of the
original Disk 1. When you get to the point of specifying your hardware, do
not select any SCSI device support from the list.  You should however, select
CD-ROM device support for your CD-ROM drive from OS/2's list of supported
devices.


Installation to an existing OS/2 Warp install:

This is pretty easy.  It assumes that OS/2 is installed on drive C:  If you 
have OS/2 insatlled in another partition, substitute the drive letter of that 
partition for the "C:" in these instructions.

1)  Copy the AMSIO2T.ADD driver to C:\OS2\BOOT

2)  Edit CONFIG.SYS and insert 2 lines that read:

 BASEDEV=AMSIO2T.ADD
 BASEDEV=OS2SCSI.DMD

If there is already a line calling OS2SCSI.DMD, you don't need to add it. 
Also, if the only SCSI device that you have is a CD-ROM drive, you probably 
don't need to add the line that calls OS2SCSI.DMD.  If you have a SCSI tape 
backup or other device besides a CD-ROM drive on the SCSI chain, you'll want 
to add it.

You'll need to shutdown and reboot in order for these changes to take effect. 
If you have a SCSI CD-ROM drive in the DeskStation, you'll need to use OS/2's
Selective Install to install support for that device.



CONFIG.SYS options for AMSIO2T.ADD
=============================================================================

The following list describes switch options supported by the AMSIO2T.ADD SCSI 
driver.  Switches may be entered in any sequence and are not case sensitive.

/AN     Enable active negation
/APM-   Disable APM (Advanced Power Management) support
/DI-    Disable disconnect privelege
/L      Enables support for SCSI logical units other than 0 (if drive supports
        more than 1 LUN)
/PAR-   Disable device parity
/PCI1   Force mechanism 1 scan of PCI bus
/PCI2   Force mechanism 2 scan of PCI bus
/S-     Disable synchronous data transfers
/SCAM-  Disable SCAM (SCSI Configure Auto-Matically)
/TQ     Enable tag queuing
/V      Verbose mode used to display information about the host adapter and 
        attached SCSI devices when booting
