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Platform compatibility checks during Upgrade & Unicode conversion projects.

 

Sometimes the approach for Upgrade & Unicode conversion project dependents on platform compatibility. I recently came across such situation & thought of sharing this with everyone.

 

If you are planning to perform Upgrade, OS/DB migration & Unicode conversion from existing SAP R/3 4.7 to ERP 6.0, the below mentioned approaches will come to your mind.

 

Approach

 

 

The approach will change if you find below scenario

 

Source system –

SAP – R/3 4.7

OS – UNIX

DB – Informix

Environment – Non Unicode

 

Target System –

SAP – ERP 6.0 EhP4

OS – Linux

DB – DB2

Environment – Unicode 

 

In the above situation you are left with only one option that is two step approach, as Informix database is not compatible with ERP 6.0 environment (refer http://service.sap.com/pam for more information).  You may combine both the steps in single downtime window, provided your DB size is less & you have bigger downtime window.

 

The approach will further change if the source environment is on SAP R/3 4.6C, as we will not able to combine the OS/DB migration along with Unicode conversion (SAP R/3 4.6C is not Unicode compatible). In such scenario you may need to perform the platform migration first & in second step perform CU&UC.

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2 Comments

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  1. Markus Doehr
    “…The approach will further change if the source environment is on SAP R/3 4.6C, as we will not able to combine the OS/DB migration along with Unicode conversion (SAP R/3 4.6C is not Unicode compatible). In such scenario you may need to perform the platform migration first & in second step perform CU&UC.”

    This is not true. You can start with the Unicode migration during the upgrade using SPUM4, do the upgrade and then export to Unicode and import on the target platform – all in one (big) step.

    See “Note 867193 – ABAP and kernel patches for CU&UC in 46C”


    Markus

    (0) 
    1. Sachin Digamber Pokalwar Post author
      Hi Markus,

      Would appreciate if you relook at the scenario mentioned above. The existing database is Informix which is not supported with ERP 6.0, so we have no options but to migrate it on supported database first. I hope this will clarify your point.

      Best regards,
      Sachin

      (0) 

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