Patch Name:  PHKL_2838

Patch Description: s700 9.01 scsi tape driver cannot switch mag tape density

This patch fixes a problem with the SCSI tape driver in which it would
unsuccessfully set density to 1600bpi for the 7980S tape drive.  In effect
all tapes would be written at 6250bpi without the user's knowledge. The
patch remedies the situation and allows 1600bpi tapes to be successfully
written on the 7980S tape drive.

Path Name:  /hp-ux_patches/s700/9.X/PHKL_2838

Effective Date:  930816

Patch Files:  
/system/PHKL_2838/new/scsi_tape.o

SR/APR#:  1653060392

"what" string/timestamp:  
scsi_tape.o:
         scsi_tape.c   $Revision: 1.2.81.7 $ $Date: 93/09/07 11:30:03 $
PATCH_9.01 (PHKL_2838)

"sum" output:  
35966 98 scsi_tape.o

Dependencies:  None.

Supersedes: PHKL_2332

Patch Package Size:  113 Kbytes

Installation Instructions:  

     Please review all instructions and the Hewlett-Packard
     SupportLine User Guide or your Hewlett-Packard support terms
     and conditions for precautions, scope of license,
     restrictions, and, limitation of liability and warranties,
     before installing this patch.

     Note: Please back up your system before you patch.

---------------------------------------------------------------------------
After getting the patch onto your machine, unshar the patch (sh PHKL_2838).

To install this patch do the following:
1) Run /etc/update (Note: you must be logged in as root to update
   a system).
2) Once in the update "Main Menu" move the highlighted line to "Change
   Source or Destination ->" and press "Return" or "Select Item".
3) Make sure the highlighted item in the "Change Source or Destination"
   window is "From Tape Device to Local System ...", then press "Return" or
   "Select Item".
4) You should now be in the "From Tape Device to Local System" window.
   Change the "Source:  /dev/rmt/0m" to "Source: /tmp/PHKL_2838.updt"
   (this assumes that you are in the /tmp directory where PHKL_2838.updt
   has been placed).  Note: You must enter the complete path name.
5) Press "Done".
6) From here on follow the standard directions for update.

The customized script that update runs will move the original software
to /system/PHKL_2838/orig.  HP recommends keeping this software there in
order to recover from any potential problems.  It is also recommended that
you move the PHKL_2838.text file to /system/PHKL_2838 to be retained for
future reference.

If you wish to put this patch on a magnetic tape and update from the tape
drive, dd a copy of the patch to the tape drive.  As an example the
following will create a copy of the patch that update can read:
dd if=PHKL_2838.updt of=/dev/rmt/0m bs=2048