Hi All,
We are planning to perform a upgrade in our landscape, in our current environment we are running with the SAP version as 4.6C NUC, OS is running as AIX 6.1.7.4 and DB2 version is 9.5, and we are planning to go for the target version as EHP6 UC.
I am sure first thing we have to meet the OS and DB and then have to plan for the SAP upgrade. With the experience, I am sure the most challenging part will be a combined upgrade & Unicode Conversion, because the database size is running with 4.5TB.
However, I am looking for the experts opinion to take it and plan for it further.
Please share your thoughts
Nutshell for our better understanding
Current Landscape :
SAP / OS & DB : SAP R/3 4.6C - NUC / AIX 6.1.7.4 and DB2 as 9.5
Target Landscape
SAP / OS & DB : SAP ERP 6.0 With EHP6 - Unicode
Step 1 : OS / DB upgrade (Preferably In place upgrade as System copy export and Import will take longer time as the DB size is huge). Also, I believe in my case - First I will upgrade DB from 9.5 to 9.7 (Which is supported for R/3 4.6c and also EHP6 - OS is not needed as 6.1 is suppported for both source and target versions)
Step 2 : EHP6 upgrade with CU&UC
Step 3 : Parallel export / Import or ICNV for the system copy
Assumptions :
Enough hardware disk space can be attached for the upgrade purpose
Thanks and Regards
Vijay Kumar G