We just did the exact same upgrade, but it is even easier than what you 
outlined below.
1. do your backups
2. shut down the server
3. use smit to install the new version

This is all we did and everything worked great!
miles


-------------------------------------------------------------------------------------------
----------------
Miles Purdy 
Miles Purdy 
System Manager
Farm Income Programs Directorate
Winnipeg, MB, CA
purdym AT fipd.gc DOT ca
ph: (204) 984-1602 fax: (204) 983-7557
-------------------------------------------------------------------------------------------
----------------
>>> tlaporte AT ANIM.DREAMWORKS DOT COM 14-Jun-01 12:14:29 PM >>>
>>> tlaporte AT ANIM.DREAMWORKS DOT COM 14-Jun-01 12:14:29 PM >>>
Platform: AIX 4.3.2
ADSM: 3.1.2.50

We have been testing 4.1 on a system that already has a 3.1
instance installed. We are now satisified with 4.1, and would
like to migrate our 3.1.2.50 instance to 4.1. The manual
indicates directions on how to do the migration at the time of
installing the 4.1 software--a step that we've obviously already taken.

I thought that what I would have to do is

 1) do a full database backup of the 3.1.0.5 instance

 2) copy my relevant files (dsmserv.dsk, etc.) to the new
    DSMSERV_DIR (/usr/tivoli/tsm/server/bin)

 3) start the TSM 4.1 server with 'dsmserv upgradedb'

 4) re-register all of my licenses


Has anybody else gone through the process in this manner? Am I
missing something?

Any advice/tips/suggestions are welcome.

 -- Tom

Thomas A. La Porte
DreamWorks SKG
tlaporte AT anim.dreamworks DOT com