What is the difference between R3copy and R3load procedures?

[Former Member]

Hi Friends,

As far as homogeneous systems copy is concerned what is the difference between R3copy & R3load methods? Which method is the best method?

Any help would be highly appreciated

Thanks,

Krishna

[former_member4251]

Hi Krishna,

In easy way:

R3COPY is the procedure to perform an homogeneous system copy (SAME OS & SAME DB in source and target system) with a backup/restore

R3load (and the newest Jload) is the procedure used to export the database contain into a files and afterwards import those files into the new (target) system.

As well as explained by Mark the R3load is used when a change on OS or DB is required or for Unicode Migration.

Further information about this can be found at <a href="http://service.sap.com/systemcopy">http://service.sap.com/systemcopy</a>

Best Regards,

Luis

[Former Member]

Need help on Below

I am doing CRM referesh on QA

CRM 4.0, J2EE 6.20, Operating System : SunOS Data base : Oracle.

Please suggest I should do simple referesh system copy means change of Host name, IP address, SID and regenrating control file.?

I am having question will J2EE will work after file copy at system level.

Thanks.

With Regards

<i>Vijay

vijay.godha@lntinfotech.com

Cell - 732 485 8863</i>

[Former Member]

Hi Khrishna,

From SAP note 89188:

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a) Database-independent R3load procedure

As of Release 3.0D, system copies can be made available with the

R3load procedure by SAP. The program module R3load is integrated in the SAP migration tools.

For heterogeneous system copies (OS/DB migrations) only use the

R3load procedure. The migration tools are part of the migration

service.

b) Database dependent backup/restore procedures

Database-specific backup/restore procedures (for example R3COPY procedure for Oracle databases) can generally only be used for homogeneous system copies. For the source and the target system binary compatibility must be given. In this case the file system or raw device structure and the hard disk management system are transferred by the source system.

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R3load can be used for homogeneous system copy also when 'Database dependent' is not possible.

More details about the different homogeneous system copy methods can be found at http://service.sap.com/instguides -> SAP NetWeaver -> Release 04 -> Installation -> SAP Web AS -> SAP Web AS 6.40 and Related Documentation -> Homogeneous and Heterogeneous System Copy -> PDF: Homogeneous and Heterogeneous System Copy for SAP Systems based on SAP Web AS 6.40.

I hope this information helps.

Regards, Mark