[ADSM-L] V5.5 -> V6.2.3 Move - Chicken-and-Egg Question

2012-04-23 11:34:57
Subject: [ADSM-L] V5.5 -> V6.2.3 Move - Chicken-and-Egg Question
From: Zoltan Forray/AC/VCU <zforray AT VCU DOT EDU>
Date: Mon, 23 Apr 2012 11:31:40 -0400
I am having difficulty reconciling which order to do what based on
documentation that says not to do it the way I have/need to do it.  I am
getting ready to do a complete migration from an old 5.5 server (Linux) to
a brand new box (both hardware and OS).

I need to restore the 5.5 DB, volhist, devconfig and dsmserv.opt to the
new box so I can do the conversion to 6.2.3.

Problem is this.............the DB backup will be on an offsite TSM
server, so server-to-server communications is required.

To establish the server-to-server connection from the brand new 5.5
install and the offsite backup server, I need to bring up the new, virgin
5.5 instance and do an "DEFINE SERVER ....  FORCESYNC=YES".

The Administrator Guide section on "Recovering Your Server Using Database
Backups - Restoring a Database to a Point-In-Time" says that after
formatting the log and database files and BEFORE the "dsmserv restore":

"Attention: Do not start the server until after you restore the database
(the next step). Starting the server before the restore would destroy any
existing volume history files."

But since I have to start the new server to define the connection so I can
restore the database........  Or am I simply reading this wrong and they
are assuming the volhist on the machine I am restoring to has the original
volhist (which it wouldn't, at this point).

So, should I simply ignore this and restore the DB and then replace the
volhist/devconfig/dsmserv.opt files on the restored server with the
originals from the server I am replacing/upgrading after I restore the DB
and before performing the upgrade?

As you can tell, this is my first total server upgrade/replacement, so I
am getting anxious about the details/processes/steps.

My current steps are:

Original Server:
1.  Disable client sessions, stop all admin schedules
2.  Empty and delete ALL disk volumes
3.  Backup DB, volhist, devconfig, dsmserv.opt  and HALT server

New Server:
1.  Install - define/format DB volumes
2.  Bring up server and define connection to offsite server with DB backup
3.  Restore DB
4.  Replace volhist, devconfig, dsmserv.opt from backups of original
5.  Install 6.2.3
6.  Run /opt/tivoli/tsm/server/bin/dsmupgdx to prepare, convert and insert
5.5 DB into 6.2.3 instance
7.  Change hostname and IP addresses to that of old 5.5 server
8.  Bring up 6.2.3 - redefine disk storage volumes - update server -
forceresync other, library manager servers - update paths

Thoughts, suggestions, ideas, corrections?

Zoltan Forray
TSM Software & Hardware Administrator
Virginia Commonwealth University
UCC/Office of Technology Services
zforray AT vcu DOT edu - 804-828-4807
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