We did this, more or less. Our old V5.5.6 system was perfectly useable
until I wiped it out. The preparedb and extract processes did not harm
the 5.5.6 system at all.

We did it "cold turkey", and the only change I made to your procedure
was a couple more database backups between steps. Search the archives
for my posts to this list December 20-27, 2012. Our experience was that
IBM's time estimates in the manuals are fairly close.

I would suggest a preliminary step of upgrading from 5.5.4 to 5.5.7.
There have been patches in the upgrade area.

Definitely make your target 6.2.5. Our newly-upgraded 6.2.3 system has
issues that appear to be fixed in 6.2.5.

Prepare yourself for it physically. Be rested. Stock the fridge at work
with sandwiches and soda. This is a marathon.

Roger Deschner      University of Illinois at Chicago     rogerd AT uic DOT edu
======I have not lost my mind -- it is backed up on tape somewhere.=====


On Wed, 27 Feb 2013, James Choate wrote:

>We have done the same thing as well.
>If you want more detail on the plan, I would do the following:
>
>.1     Only needs to be done once, but load the upgrade utilities on the 
>server to be upgraded
>
>.2     Backup 5.5.4 Database
>
>4      extract the database .....(when I extract the db I always put the 
>manifest file on the /upgrade filesystem)
>4.1    Copy devconfig & volhist to /upgrade  (grabs the devclass for the 
>extracted file)
>
>5.1    copy devconfig & volhist from /upgrade to /home/<tsminst1>     (usr 
>name of new 6.2.4 instance owner)
>       Check permissions on files
>
>5.2    dsmserv removedb TSMDB1
>5.3    cleanup directories that hold the db2 db, db2 log, db2 logm, db2 
>archlog, db2 arch failover by removing files
>5.3    format database to meet sizing requirments
>6.1    set dbrecovery
>6.2    backup new 6.2.5 TSM db
>
>No ideas on what the prepared db does.
>
>~james
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
>Of Lee, Gary
>Sent: Wednesday, February 27, 2013 10:03 AM
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: Re: [ADSM-L] upgrae from 5.5.4 to 6.2.4
>
>So far, sounds good.
>This is my plan.
>
>1. run prepared on 5.5.4 server.
>
>Two create a file devclass on 5.5.4 server pointing to /upgrade.
>
>3. mount a file system from the new tsm server onto /upgrade.
>
>4. extract the db to /upgrade.
>
>5. restart the 5.5.4 server for production work.
>
>6. do the insert on the 6.2.4 server.
>
>Does this look reasonable?
>
>I have so far not found an explanation of what the dsmupgrd prepared does.
>
>Any ideas?
>
>Gary Lee
>Senior System Programmer
>Ball State University
>phone: 765-285-1310
>
>
>
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
>Of Huebner, Andy
>Sent: Wednesday, February 27, 2013 9:41 AM
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: Re: [ADSM-L] upgrae from 5.5.4 to 6.2.4
>
>We did an upgrade from 5.4 to 6.2.
>I used a copy (SAN trick) for the source of the upgrade.  I do not think the 
>5.5 to 6.2 upgrade changed the copy, I did not check, but I did not see any 
>writes to the disks.  The extract was written to a new disk.  We created a new 
>devclass (file) to write the data to.
>Our about 200GB DB took about 3 hours to extract, the insert to 6.2 took 
>10+hours.  This was done on a P6.
>We did 3 practice upgrades for each server.  Only 1 upgrade test failed 
>because we did not get a clean copy.
>
>You might consider 6.2.5 as your target.
>
>Good Luck.
>
>Andy Huebner
>
>
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:ADSM-L AT VM.MARIST DOT EDU] On Behalf 
>Of Lee, Gary
>Sent: Wednesday, February 27, 2013 8:20 AM
>To: ADSM-L AT VM.MARIST DOT EDU
>Subject: [ADSM-L] upgrae from 5.5.4 to 6.2.4
>
>I want to do a couple of practice upgrades of our tsm server v5.5.4 to a 
>different box running v6.2.4.
>
>Reading the upgrade guide, I have to do the
>
>Dsmupgr prepared
>
>Then a
>
>Dsmupgrd extractdb
>
>I have not yet determined whether these will render the 5.5.4 server unusable?
>
>Has anyone out there done this and if so, what should I expect?
>
>Gary Lee
>Senior System Programmer
>Ball State University
>phone: 765-285-1310
>
>
>