Java Uninstall required on Dual stack before upgrade

[Former Member]

Hi All,

We have Netweaver 7.0 Dual stack system SP18.

OS - HP UNIX and DB - Oracle 11.2.0.3

We are performing split of this system and after split we will perform upgrade to Netweaver 7.4 latest SP.

Now my question is after export/import of java under split, Do we need to perform uninstall of Java stack also on source system before starting upgrade.

Does SPLIT activity perform any changes on source system also so that if after split and before uninstalling Java on system(after cleaning up SLD and LMDB) if we try to regenerate stack file for source system it will only consider ABAP stack and will generate stack file for ABAP stack only.

Please suggest.

Regards,

Shivam

[Former Member]

Hello Shivam,

You would need to uninstall Java stack after export/import of Java for completing the dual-stack split procedure.

I would advise you to take full offline backup of the dual stack system before proceeding with this procedure.

There are no changes to source system unless you proceed with uninstall step for Java. There are post-steps involving 'Cleaning Up the System Landscape' after you complete the split. This will ensure stack file is generated only for respective stacks. You can check the guide for this.

After you uninstall, ensure users test the functionalities involving both stacks.

Thanks.

Best Regards,

Anita

[Former Member]

Thank you Anita for your response.

In this scenario, Do you think it is possible that our separated Java instance and existing Java instance(on dual stack) can run in parallel.

New Java instance for Testing-> all scenarios tested-> then we can uninstall Java from existing dual stack.

And During testing existing java instance will provide environment for routine work.

Regards,

Shivam

[Former Member]

Hello Shivam,

I don't think what you're asking for is possible. You would need to uninstall the Java instance in order to test. If you have a backup and export of the source system you should be safe.

Thanks.

Best Regards,

Anita