Hello Sandro,
When you perform a system copy of a dual stack system, you cannot perform the backup and/or export of only one of the stacks. Your current system is a SAP ERP 6.02, which is based on SAP NetWeaver 7.0.
When you perform a "system refresh", you backup the database and restore it into an existing system. It is only possible with ABAP-only systems. As your system is a dual stack, it is not supported by SAP.
System Copy Guide
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1.4 Restrictions
The target system installation consists of both the target database and target instance/application server installations. For the scenarios below, the following holds:
- Refreshing the database is not supported. Refreshing the database means that only the database is loaded with the content of a database of a different system. Since no migration controller is invoked in this scenario, this is not supported.
- Copying only the database is not supported.
1.5 Constraints
When your system is a dual-stack system and you perform a system copy, your source system is copied to the target system as a whole. This means, it is neither possible to exclude a single stack from the system copy nor to copy a separate stack only.
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The correct procedure is following as described by System Copy Guide. You need to use the SWPM to perform the backup of the database and also run the export of the java central instance.
Then during the target system installation you can restore the database.
You can check further details about the correct procedure following the sections:
- Database-Specific System Copy
- Oracle-Specific Procedure
You can find the SWPM and the System Copy guides in the link below:
http://www.service.sap.com/sltoolset
Also please remember to refer SAP note #1680045 for further details regarding SWPM.
Best Regards,
Henrique Girardi
SAP Active Global Support