Greetings,
    I have a customer running TSM 6.1.3.3 under RedHat Linux 5.2.  The
Library Master instance on this server has a HP ESL722 tape library with
LTO4 tape drives, and a HP VTL emulating a ESL tape library with LTO3
drives.  They are running the TSMscsi drivers to talk to the drives,
version TIVsm-tsmscsi-6.1.3-1.x86_64.  Any time they reboot the server,
they execute:

cd /opt/tivoli/tsm/devices/bin
./autoconf -a

which loads the tsmscsi driver and configures the drives.  This has been
working fine for months now.  The output is:

******************************************
*       IBM TIVOLI STORAGE MANAGER       *
*   Autoconf Utility Program for Linux   *
******************************************
Licensed Materials - Property of IBM
 
(C) Copyright IBM Corporation 2009. All rights reserved.
U.S. Government Users Restricted Rights - Use, duplication or disclosure
restricted by GSA ADP Schedule Contract with IBM Corporation.
 
Added the read and write permissions for all users to /dev/sg35.
Added the read and write permissions for all users to /dev/sg36.
Added the read and write permissions for all users to /dev/sg37.
Added the read and write permissions for all users to /dev/sg38.
Added the read and write permissions for all users to /dev/sg39.
Added the read and write permissions for all users to /dev/sg40.
Added the read and write permissions for all users to /dev/sg41.
Added the read and write permissions for all users to /dev/sg42.
Added the read and write permissions for all users to /dev/sg43.
Added the read and write permissions for all users to /dev/sg44.
Added the read and write permissions for all users to /dev/sg45.
Added the read and write permissions for all users to /dev/sg46.
Added the read and write permissions for all users to /dev/sg47.
Added the read and write permissions for all users to /dev/sg48.
Added the read and write permissions for all users to /dev/sg49.
Added the read and write permissions for all users to /dev/sg50.
Added the read and write permissions for all users to /dev/sg51.
Added the read and write permissions for all users to /dev/sg52.
Added the read and write permissions for all users to /dev/sg53.
Added the read and write permissions for all users to /dev/sg54.
Added the read and write permissions for all users to /dev/sg55.
Added the read and write permissions for all users to /dev/sg56.
Added the read and write permissions for all users to /dev/sg57.
Added the read and write permissions for all users to /dev/sg58.
Added the read and write permissions for all users to /dev/sg59.
Added the read and write permissions for all users to /dev/sg60.
Added the read and write permissions for all users to /dev/sg61.
Added the read and write permissions for all users to /dev/sg62.
Added the read and write permissions for all users to /dev/sg63.
Added the read and write permissions for all users to /dev/sg64.
Added the read and write permissions for all users to /dev/sg65.
Added the read and write permissions for all users to /dev/sg66.
 
Tivoli Tape Drives:
===================
Index Minor Host CHN ID  LUN Type Vendor_ID Device_Serial_Number      
Product_ID       Rev.
000   035   001  000 000 000 001  HP        MXP09210N5           Ultrium
4-SCSI   H36W
001   036   001  000 001 000 001  HP        HU18282JH5           Ultrium
4-SCSI   H36W
002   037   001  000 002 000 001  HP        HU17340A0J           Ultrium
4-SCSI   H36W
003   038   001  000 003 000 001  HP        MXP09210MC           Ultrium
4-SCSI   H36W
004   040   003  000 001 000 001  HP        HU18494CGF           Ultrium
4-SCSI   H36W
005   041   003  000 002 000 001  HP        MXP09190H5           Ultrium
4-SCSI   H36W
006   042   003  000 003 000 001  HP        HU19024M8Y           Ultrium
4-SCSI   H36W
007   044   004  000 000 001 001  HP        025qFkNO01           Ultrium
3-SCSI   R210
008   045   004  000 000 002 001  HP        025qFkNO02           Ultrium
3-SCSI   R210
009   046   004  000 000 003 001  HP        025qFkNO03           Ultrium
3-SCSI   R210
010   047   004  000 000 004 001  HP        025qFkNO04           Ultrium
3-SCSI   R210
011   048   004  000 000 005 001  HP        025qFkNO05           Ultrium
3-SCSI   R210
012   049   004  000 000 006 001  HP        025qFkNO06           Ultrium
3-SCSI   R210
013   050   004  000 000 007 001  HP        025qFkNO07           Ultrium
3-SCSI   R210
014   051   005  000 000 000 001  HP        HU17430JKJ           Ultrium
4-SCSI   H36W
015   052   005  000 001 000 001  HP        MXP09190H4           Ultrium
4-SCSI   H36W
016   053   005  000 002 000 001  HP        HU18413JBJ           Ultrium
4-SCSI   H36W
017   054   005  000 003 000 001  HP        MXP09170DG           Ultrium
4-SCSI   H36W
018   055   006  000 000 000 001  HP        025qFkNO08           Ultrium
3-SCSI   R210
019   056   006  000 000 001 001  HP        025qFkNO09           Ultrium
3-SCSI   R210
020   057   006  000 000 002 001  HP        025qFkNO0a           Ultrium
3-SCSI   R210
021   058   006  000 000 003 001  HP        025qFkNO0b           Ultrium
3-SCSI   R210
022   059   006  000 000 004 001  HP        025qFkNO0c           Ultrium
3-SCSI   R210
023   060   006  000 000 005 001  HP        025qFkNO0d           Ultrium
3-SCSI   R210
024   061   006  000 000 006 001  HP        025qFkNO0e           Ultrium
3-SCSI   R210
025   062   006  000 000 007 001  HP        025qFkNO0f           Ultrium
3-SCSI   R210
026   063   007  000 000 000 001  HP        HU19044R76           Ultrium
4-SCSI   H36W
027   064   007  000 001 000 001  HP        HU18383947           Ultrium
4-SCSI   H36W
028   065   007  000 002 000 001  HP        MXP09210N8           Ultrium
4-SCSI   H36W
029   066   007  000 003 000 001  HP        HU181720AU           Ultrium
4-SCSI   H36W
 

Tivoli Medium Changer Devices:
==============================
Index Minor Host CHN ID  LUN Type Vendor_ID Device_Serial_Number      
Product_ID       Rev.
000   039   003  000 000 000 008  HP        2U10630005           ESL
E-Series     6.23
001   043   004  000 000 000 008  HP        025qFkNO00           ESL
E-Series     2.00
 

    Yesterday they tried to upgrade from RedHat 5.2 to 5.4.  We didn't
change anything on the TSM software. The upgrade went fine, and after
the reboot onto the new kernel, they went through the same routine of
running "autoconf -a".  This time when the TSM Library Master came up,
it got I/O errors on each of the drives, and was not able to mount
anything.  It said it initialized the Library OK, but I have no way to
know if that was really true.

    We were not able to figure out the why RedHat 5.4 caused TSM to have
a problem. so eventually had to reboot on the old RedHat 5.2 kernel. 
They we ran "autoconf -a", brought up the TSM Library master, and
everything worked fine.  So the problem is definitely between RedHat 5.2
and 5.4. 
   
    Has anyone seen a problem like this, and can give us some insight?

Best Regards,

John D. Schneider
The Computer Coaching Community, LLC
Office: (314) 635-5424 / Toll Free: (866) 796-9226
Cell: (314) 750-8721