I went from 5.1.9 to 5.2.3 in late Sept.  I'm sure you know you need to load 
the new 5.2.0 base code, then apply the upgrade to take you to the 5.2.3 
levels.  When you start the server on the upgraded level, my IBM consultant 
told me to run without the UPGRADEDB parameter first and the system log will 
tell you if you have to run the UPGRADEDB.  In my case, the log did tell me to 
run the UPGRADEDB, which took quite a bit of time (11+ hours for my 22GB 
database).

I will tell you that I've seen many TSM admins on this list serve say that 
their upgrades were flawless and completed in the matter of 20 or 30 minutes.  
I have no idea why mine was so long, but the system is running quite well on 
the new level, so I am confident I have a healthy installation.

If I were you, I'd schedule a large upgrade window and hope that I don't need 
85% of it.

Good luck.

-----Original Message-----
From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU]On Behalf Of
Zoltan Forray/AC/VCU
Sent: Tuesday, November 09, 2004 8:26 AM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Upgrade of z/OS TSM server


I am about to upgrade my z/OS TSM server from 5.1.8.0 to 5.2.3.4.

Any gotchas ?

Anything I should know besides the required (?????) UPGRADEDB  and of
course a full DB backups !

It has been so long since I messed with z/OS TSM, I want to make sure I
don't miss something !