Dear SCO Customer,

The enclosed Support Level Supplement (SLS) PTF3098, the SDI Target Driver
Supplement, allows the HBA drivers to recognize targets that are configured 
on LUNs other than 0.
 
Previously, SCSI targets configured on different LUNs were not scanned 
correctly. If the user had targets configured as LUN 3 and 4, for instance, 
they were not detected.  This situation occurred with some RAID subsystems 
where the logical disk volumes could be configured at any LUN.  SCSI HBA 
drivers used for RAID targets need to be able to scan non-sequential LUNs.

With SLS PTF3098 installed, LUN search does not stop if LUN 0 is not 
configured.

The scanning of the bus (sdi_add_edt) was modified to prevent it from 
breaking from the search loop if LUN 0 is not currently present, but is
capable of supporting a device which is common in RAID devices.


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

PTF3098 should only be installed on these releases:

        SCO UnixWare Application Server Release 2.1.0
        SCO UnixWare Application Server Release 2.1.1
        SCO UnixWare Application Server Release 2.1.2
        SCO UnixWare Personal Edition Release 2.1.0
        SCO UnixWare Personal Edition Release 2.1.1
        SCO UnixWare Personal Edition Release 2.1.2


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 ptf3098.Z and the ptf3098.txt files to the newly
   created /tmp/pkg directory on your machine.
 
3. Read the Release Notes contained in the ptf3098.txt file.
 
4. Uncompress the file and add the package to your system using these
   commands:
 
     # uncompress /tmp/pkg/ptf3098.Z
     # pkgadd -d /tmp/pkg/ptf3098 


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

1. Become root and remove the package by typing these commands:

     $ su
     Password: <type your root password>
     # pkgrm ptf3098


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