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What's the best solution Unicode Conversion and Upgrade on AS 400

Former Member

‎03-08-2010 8:53 AM

0 Kudos

Hi Guys,

We have a R/3 4.6C system on AS400 server. Within this year, we' like to change hardware and DB vendor (Oracle), in the meantime we also need to perform the UC and upgrade to ECC6.0.

What 's the best scenario? we have below suggestions.

1

Step1 - Heterogeneous migration and perform UC to new server and DB in one migration (export / import)

Step2 - Upgrade ECC6.0 Unicode

(not sure about this solution, is Unicode conversion to 4.6C without upgrade possible?????)

2

Step1 - Heterogeneous migration to new server and DB

Step2 - UC&UP

3

Step 1 - Heterogeneous migration to new server and DB

Step 2 - Upgrade to ECC non-unicode

Step3 - Unicode conversion to ECC unicode

????? which is better? 2 big question

- is Unicode conversion to 4.6C without upgrade possible?????)

- what's the difference between UC&UP and upgrade first and perform UC later, which is better?

Thanks very much

Lin

Edited by: ye zhulin on Mar 8, 2010 9:53 AM

3 REPLIES 3

nils_buerckel
Product and Topic Expert
Product and Topic Expert

‎03-08-2010 9:34 AM

0 Kudos

Hi Lin,

I assume you have an EBCDIC database at the moment.

Point 1 is not possible, since 4.6C is not supported with Unicode.

The difference between CU&UC and a separate Upgrade and a later Unicode conversion is that CU&UC is done in one downtime. However you need to evaluate whether this is possible with your downtime requirements.

My recommendation would be to do the Migration and after that the CU&UC approach (if this is possible in a feasible downtime window - this is highly dependent on your system size / downtime requs / hardware capabilities).

Best regards,

Nils Buerckel

SAP AG

Edited by: Nils Buerckel on Mar 8, 2010 10:34 AM

Former Member
In response to nils_buerckel

‎03-08-2010 11:08 AM

0 Kudos

Thanks very much, i will try to set up a test environment to evaluate.

Former Member

‎03-08-2010 3:14 PM

0 Kudos

> 3

> Step 1 - Heterogeneous migration to new server and DB

> Step 2 - Upgrade to ECC non-unicode

> Step3 - Unicode conversion to ECC unicode

This one sounds practical, no unicode in 46C release and unicode conversion can not be performed while upgrading.

Depends on how big the database you're migrating, it's always helpful to reorganize and archive your instance as much as possible.

Regards,

Effan