Dear SCO Customer,

The enclosed Support Level Supplement (SLS) PTF3072, the SCSI Disk Target
Driver Supplement, installs an updated driver which handles a bus reset 
caused by a SCSI Host Bus Adapter driver.

The Disk Target Driver (sd01) mishandled the occurrence of a bus reset which
led to system panic trap. The fault handling module of the target driver
was modified to gracefully recover from the bus reset condition.


Software Notes and Recommendations
----------------------------------

This SLS can be installed on SCO UnixWare Application Server Release 2.1.0 
or SCO UnixWare Personal Edition Release 2.1.0.


Installation Instructions
-------------------------

1. Become root and create a new directory by typing the following:
 
     $ su
     Password: <type your root password>
     # mkdir /tmp/pkg
     # chmod 700 /tmp/pkg
     # cd /tmp/pkg

2. Download the ptf3072.Z and the ptf3072.txt files to the newly
   created /tmp/pkg directory on your machine.
 
3. Uncompress the file and add the package to your system using these
   commands:
 
     # uncompress /tmp/pkg/ptf3072.Z
     # pkgadd -d /tmp/pkg/ptf3072 

4. Reboot the system after installing this PTF.


Removal Instructions
---------------------

1. As root, remove the package.

     $ su
     Password: <type your root password>
     # pkgrm ptf3072

2. Reboot the system after removing this SLS.


If you have questions regarding this SLS, or the product on which it is
installed, please contact your software supplier.

We appreciate your business.

SCO Support Services