From: Orville Lantto [mailto:orville.lantto AT DATATREND DOT COM] 
> From the AIX 5.2 Install tips
> https://techsupport.services.ibm.com/server/pseries.subscripti
> onSvcs?mode=7&heading=AIX52&topic=TIPS&month=200306&label=AIX+
> 5.2+Installation+Tips&date=20030628&bulletin=datafile105211#TSM
> 
>  TSM 5.1 Not Supported on AIX 5.2
>  Tivoli Storage Manager (TSM) 5.1 is not compatible with AIX 5.2 and
>  will cause a system crash if installed. TSM 5.1 is shipped in error
>  on the AIX 5L for POWER V5.2 Bonus Pack (LCD4-1141-00) dated 10/2002,
>  and should not be installed.
> 
>  Once TSM 5.1 is installed on AIX 5.2, the system will crash on every
>  reboot. To recover from this situation, the system will have to be
>  booted in maintenance mode from the AIX 5.2 installation media or a
>  system backup (mksysb) to uninstall the tivoli.tsm.* filesets.
>  Alternatively, the following line can be uncommented in /etc/inittab
>  by inserting a ':' (colon) at the beginning of the line.
> 
>       adsmsmext:2:wait:/etc/rc.adsmhsm > /dev/console

Look very carefully at the line-to-be-remarked-out that the install tips
doc indicates. It appears that the problem lies not with the server, but
with the kernel extensions that the TSM HSM client requires.
 
--
Mark Stapleton (mark.stapleton AT berbee DOT com)
Berbee Information Networks
Office 262.521.5627