I have New Task and I don't know how to start.
Am working on Oracle Application 12.1.3
And Database 11.2.3
OS Redhat Linux 6.1
My Production Server have the database and the application on the same Server (Single node),
I want to create another 2 Servers with same Operating system to separate the application and the Database to be each one on separate server (Multi Nodes),
And Migrate the Production Server Data on It?
And i need to know how many days it will takes because we are live now ?
Install the OS on the new servers -- Oracle E-Business Suite Installation and Upgrade Notes Release 12 (12.1.1) for Linux x86-64 (Doc ID 761566.1)
Use Rapid Clone to move the application/database to the new server.
Rapid Clone Documentation Resources For Release 11i and 12 (Doc ID 799735.1)
Cloning Oracle Applications Release 12 with Rapid Clone (Doc ID 406982.1)
For the duration, it depends on the size of your application/database and how long it takes to copy the files.
For different OS on the source and target nodes, more steps are required here and the migration would take longer. It would be recommended to migrate each tier node in different window to minimize downtime.
The following docs cover the docs/steps you need to refer to complete this migration.
Frequently Asked Questions: Oracle E-Business Suite Support on x86-64 (Doc ID 343917.1)
R11i / R12: Oracle E-Business Suite Upgrades and Platform Migration (Doc ID 1377213.1)
Those (Migration) Docs it's not straight forward ,
I don't know which step shall i start with?
Please elaborate more on what you are trying to achieve since we addressed two different topics here in this thread (migrate to the same OS, and migrate to different OS).