Marc,

if you can afford little bit more time I would recommend you to test it
first to ensure it will run smoothly:
1. Get another box capable to run AIX 4.2.1 (it can be hard those days :-)
and put ADSM 3.1 on it.
2. Restore your TSM DB to this "new" box. Just the DB, there is no need to
attach to it any storage devices. And do not forget to disable schedules
in dsmserv.opt - your test server can try to contact several nodes in
prompted mode.
3. Perform OS and TSM upgrade.
4. Backup upgraded DB and restore it on new production server.
If all this completes successfully you can be sure real upgrade+migration
would be fine. And you will not be in a hurry.
There are no two ways to upgrade - I am sure you cannot put AIX 4.2.1 on
your brand new server :-) Yes, you can put ADSM 3.1 on AIX 4.3 and then
upgrade to TSM but better perform upgrade on the old box and only restore
the DB on the new server. If you are not confident in the success of the
migration perform the upgrade same way - do 1, 2, 3 and 4. Thus in case of
problem/failure you can stay with your old server and try again next
day/week/month.
If this insurance is still not enough - sign a contract with a consultant
:)

Zlatko Krastev
IT Consultant




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Subject:        ADSM 3.1 to 4.2.1 Migration

Hello Again,

Since we are getting a new library we are also getting new server hardware
and going to TSM 4.2.1 (5 will be later).  Therefore, we have a 2 way
upgrade (old software to new software, old server to new server).

I gave TSM support a call and asked what their recommended procedure was
and I found out that they really don't have any, but the tech support guy
who responded gave me a procedure that he says has worked for others.

In our case, we need to upgrade the OS on the old server (still at 4.2.1)
to 4.3.3. Do an update install of TSM on top of what we have now.  Export
the database after it has been transformed by the update/install to tape.

Take the export tape and import it into the new server (along with the old
tape libraries).  Then migrate the data from the old library to the new
library.

Is this what others have done?  I have seen snippets of other things being
done,  but usually it appears that server hardware remained the same.

TIA for all of your comments.

Marc

===============================
Marc D. Taylor
Research Programmer
Beckman Institute Systems Services
Room 1714
Office:  217-244-7373, Fax:  217-333-8206
mdtaylor AT uiuc DOT edu
http://biss.beckman.uiuc.edu