Upgrading of HPUX

[Victor Lopez_2]

I have a Server hp9000 L2000 9000/800 with s.o. B11.00. I need upgrade to B.11.23 for upgrade of Oracle 8 to Oracle 9i.

what consideration i have to take to execute this task.

you can help me?

Victor Lopez

[Pete Randall]

Start by reviewing this:

http://h18000.www1.hp.com/products/quickspecs/12079_div/12079_div.HTML#Overview


Pete

[Steven E. Protter]

1) A different course of action. The more complex your application environment the more likely failure. Oracle will have to be patched and then relinked, possibly several times. update-ux is problematic. Use make_tape_recovery before even trying.

2) Better course is to plan a cold OS installed followed by new oracle install and data conversion. This will take some time and you might want to lease some hardware for the transition.

SEP

[Alessandro Pilati]

First consider a 2 step migration:

http://docs.hp.com/en/5990-6728/ch02s02.html#babiiaeh

As you can see from the link above, you can only upgrade to hpux 11.23 ( hpux 11iv2 ) passing through hpux 11.16 ( hpux 11iv1 )


So take this link for the 11.00 to 11iv1 migration first:

http://docs.hp.com/en/5187-4496/ch02s01.html


And then follow this link for the 11iv1 to 11iv2 migration:

http://docs.hp.com/en/5990-6728/ch06.html


Regard to Oracle, I'm not a great expert, try to follow this link for further information:

http://forums.oracle.com/forums/message.jspa?messageID=494724

Hope this helps

Best Regards,
Alessandro

[Pat Lieberg]

I recommend following SEP's recommendation. I've never done such an upgrade on HPUX, but have done them on both MS Windows and AIX and with this complex a scenario, you are better off with a fresh install. This way you can ensure that your new install of the OS and Oracle are completely stable before migrating your data. If you run into any issues during your conversion process, you don't have to spend time looking into whether your OS or Oracle upgrades left relics in the system.

I also see that Alessandro mentions that the OS upgrade would be a two step upgrade (first to 11iV1 then to 11iV2). This adds even more chance for problems.

[Arunvijai_4]

Take a look at the follwing doc, it is very helpful for migration from 11.00 to 11.23

HP-UX 11i version 2 Installation and Update Guide: HP Integrity Servers, HP Workstations, and HP 9000 Servers
http://docs.hp.com/en/5991-0792/index.html

-Arun

[Jeff Lightner_1]

I think Steven E. Protter is dead on with his answer. At a prior job we spent 6 weeks planning for an OS upgrade, testing etc... and after the upgrade STILL found issues to resolve.

Additionally when you upgrade rather than reinstalling you miss a perfect opportunity to get rid of all sorts of garbage you no longer need or want. (Just one example would be all your 11.0 patch sets in /var/adm/sw.)

My suggestion would be:
1) Identify what is currently running and IN USE. (Doing a ps -ef will be a good start on this.)
2) Document how to install those items that aren't part of the OS itself (Oracle, SAP, Tivoli, Netbackup whatever...)
3) Backup the system from root down to tape so you can recover anything you might need later (as noted above there WILL be something you didn't think you'd need that you'll find out you do).
4) Do a cold install of the new OS.
5) Install the applications etc... identified in steps 1 & 2.

Also if you can do it an even better way is to do steps 1 & 2 then do a cold install on a separate new system then do step 5 there. Have your users verify everything is OK there then decommission the original machine. At that point you could cold install it for another purpose.