on 02-16-2007 3:14 PM
Can someone help?
We run
Redhat X86_32
Oracle 9.2 32bit
EP 6.0 6.40 SP15
Web AS Java only (no ABAP stack)
We want to migrat to
Suze SLES 9/X86_64
Oracle 10.2.0.2 64bit
EP 7.0
NW2004s SR2 NW AS Java
We believe that we can
- upgrade the OS
- upgrade/migrate Oracle from 9.2 32bit to 10.2.0.2 64bit
After the above steps, how do we upgrade our Web AS Java to NW AS Java?
Can we upgrade directly to 64-bit using the 64-bit media?
Or must we upgrade using the 32-bit media?
All advice would be appreciated!
Thanks,
Judith
I'd do it the following way (if you have two machines):
- upgrade your 32bit ORA from 9.2 to 10.2
- shutdown and backup the instance incl. ORA
- install 64bit SuSE SLES 9 (preferably same hostname, different IP)
- do a homogeneous system copy using the NW04 SR 1 CD to the target system using a database backup
- upgrade your WebAS 6.40 to NWAS 7.00 using a standard java upgrade on the new system (you need to do a real upgrade)
- shutdown the old system
- set the IP of the second box to the original one of the old box
--
Markus
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Dear Judith,
the official SAP page covering such topics is <a href="https://service.sap.com/osdbmigration">https://service.sap.com/osdbmigration</a>. As you want to change the OS (from Red Hat to SUSE), the DB (from Oracle 9 to 10), the architecture (from i386 to x86_64) and the SAP software stack (kernel 6.40 to kernel 7.00), you will find all information on this page.
Best Regards,
Hannes Kuehnemund
Hello Judith
Not sure if I understand your question correctly, but let me try 2 answers anyway:
1) There is no way to upgrade a 32bit Linux OS to 64bit, for this reason one has to copy the system over to a new OS installation. Very often the server is not yet capable of running 64bit software. If it is, and if you have smartly separated the SAP directories away from the OS related directories (separate mount points), a new installation and exchange of binaries like database (the Oracle info was already in ma last reply), kernel and SAP Java binaries would allow for a direct upgrade to 64bit. But this is not the officially supported SAP way. A sysadmin with good experience will be able to do this nevertheless. In this case one has, e. g., to care about entries in /etc/services, the SAP related OS users and their home directories, JDK and path to JDK as used by SAP J2EE.
2) Second possible scenario to get from NW04 32bit to NW04s 64bit is do the upgrade to NW04s on the 32bit box, then copy over to 64bit. In almost all cases performing the system copy before the upgrade makes more sense, as you will benefit from new hardware right away, get rid of 32bit limitations as early as possible, ...
But perhaps you even had something different in mind.
Hello Manfred,
We really appreciate your help with this
I believe you do understand our questions correctly. But to clarify:
Our hardware is 64-bit capable
We have done a new install of the OS
We know how to migrate/upgrade Oracle from 9.2 32-bit to 10.2 64-bit (as per your recommendations and note 940811
We just need to figure out how to get to 64-bit java kernel and SAP java binaries.
When you say: "a new installation and exchange of binaries like database" do you mean to do a new installation of NW04 64-bit on top of the new OS and then replace the database with the Oracle 10.2 64-bit database?
We're not sure if there are config files in the old /usr/sap/sid that we would lose.
Judith
Hi Judith
Basically there are 2 ways to do the install: use SAP installation to have the binaries installed. Probably a good idea to back up your /usr/sap directory first.
Doing the manual replacement is a bit trickier. Notes 710914 and 718901 may be of help. I have never done this myself, but I know that it is possible.
Don't forget to exchange the JDK by the 64bit version (note 861215).
We have done something similar with our NW04 testdrive for Linux. Our updater https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/42dbc4a9-0401-0010-5091-c680531e... updates a 32bit version to 64bit (this one is MaxDb and Abap/Java though).
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