Migrating from PA-RISC HPUX to Integrity Servers running HPUX

[Shivkumar]

Hi,

We are running iplanet, hp apache, weblogic and oracle 9i on PA-RISC HPUX Unix. We are planning to migrate
these applications to Itanium based HPUX 11i v1 or v2.

What care needs to be taken for migration ?

Thanks,
Shiv

[Pete Randall]

The main concern should be "are all these applications certified for Itanium and the release of HP-UX you're going to run"?

Other than that, try to set it up so that you can test side by side to ensure that you're getting identical results.


Pete

[Raj D.]

Hi Shiv ,


You need to check the compatibility matrix for iPlanet , Apache , Weblogic and Oracle 9i , in HPUX 11.11 or 11.23. with Itanium.

If all are compatible surely you can plan for the migration.

Cheers,
Raj.

[Raj D.]

You can check this migration plan of Webserver,


http://www.hp.com/products1/unix/webservers/apache/techtips/Migration-iPlanet-to-HPApache.pdf

hth,
Raj.

[Gordon Crone]

Not sure about iplanet, but SunOne webserver is not available on itanium / UX 11i v2 ( I asked Sun).

We run weblogic 8.1 and 9.1 on itanium, as well as oracle 10G (pretty sure 9i is supported as well).

Apache is supplied by HP with HP-UX 11i v2 for ipf.

Gord

[Arunvijai_4 · Accepted solution]

Hi Shiv,

First and foremost is version compatibility. Make sure all version of running softwares available on Itanium as well.

Some of these links may help you,

http://www.oracle.com/technology/tech/migration/index.html
http://h21007.www2.hp.com/dspp/bus/bus_BusDetailPage_IDX/1,1252,4474,00.html

-Arun

[H.Merijn Brand (procura]

On Itanium (choose Itanium2, if Itanium is still available at all), Oracle runs fine (for as far as Oracle runs at all), but only in 64bit. IIRC Oracle 9 is the last version of Oracle that was still available in 32bit mode for PA-RISC.

That said, be sure to check that everything you want to use with Oracle from third parties or OpenSource is available and working correct in 64bit (OpenSSL, OpenSSH, perl + DBI + DBD::Oracle) and test before migrating.
Starting the database and seeing your data can be accessed is by no way a guarantee that your applications will run (and I can tell you from some of our customers that this is the way Oracle database administrators `prove' that Oracle is no cause for failure: their part works).

Be sure to check is the used locale is installed and available on the new machine, and that conversions work, including diacritical marks, unicode, and/or binary data, and that reading large binary chunks do not crash upon imposed system limits.

When possible, check all aps on it's own before trying to run all at once to see if things work. A ruined database will only cost you more time.

Last but not least: check for performance issues. Inventarize what are the slowest parts in the app, and see if the respons is still within acceptable margins on the new box. New hardware, and certainly on a different architecture, is by no means a guarantee that those bottlenecks are solved.

Enjoy, Have FUN! H.Merijn

[Steven E. Protter]

Shalom Shiv,

This depends on the application vendor. Oracle for example would have to be re-installed on the new OS and the data involved would have to be migrated through a process they provide.

If you are planning this migration, the first thing you need to do is contact the vendor and see if the platform and the OS are on the support matrix.

If they are, it could be as simple as installting the applicaiton and migrating the configuration customizations that you must have done.

SEP