R/3 4.7 to ECC Upgrade and configure clustering

[nirmal_konchada]

Hello All,

I have a query in which I am looking for a best approach.

Currently I have my R/3 4.7 System on AIX and Oracle. Now I want to Upgrade the system to ECC 6 EHP4 and then configure HA for the ECC System.

Can some body suggest me the best process how to go ahead. I want to install ASCS and Dialog Instance on Node 1 and CI and Database on Node 2. Please explain me how can I seperate my ASCS now as in 4.7 ASCS was a part of CI.

Regards,

Nirmal.K

[Former Member]

You can do fresh install the ASCS and DVEBMGS with sapinst (yes even with an ASCS, the first dialog instance is still called central instance). There is also a createscs procedure available, have a look at note [821904 - Separating SCS instances for ABAP and J2EE|https://service.sap.com/sap/support/notes/821904]

But you don't need to do this at all, you can still run the one single central instance on node 1. In your setup splitting the central instance does not provide any additional benefit.

Cheers Michael