Re: R12.1.3 migration from el5 32 bitto 64bit

Posted by ErmanArslansOracleBlog on Feb 25, 2022; 7:32am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/R12-1-3-migration-from-el5-32-bitto-64bit-tp10687p10691.html

Your Apps is 32 bit right? It is a mini-project.. You should first do it on your TEST environment and then plan it for PROD..

In order to migrate to 64 bit, the general plan is as follows;
(this is to show you the general process.. For the detailed process, you should follow Application Tier Migration notes on MOS)

New Linux 64 bit installation.
Patching in source (required patches if there are any)
Run preclone and maintain snapshot info on Source
Analyze of Techstack & Patches on source
Create a custom manifest & upload it to Oracle Support
Copy the required directories from source to target(new 64 bit Linux)
JDK and infozip installation of target linux
Modify the source context file according to the target environment
New Tech stack installation on target Linux env.
autoconfig on target linux env
Apply the custom manifest patch on target linux
Control & check components and tech stack on target
Regenerate the filesystem objects and do the required adadmin tasks.
Clear the node config
Run autoconfigon DB + APPS node on target env.
Customer specific additional tasks and babysitting.