When it comes to a server upgrade or migration, database administrators will have to question whether to clone or install the Oracle binaries. The cloning process works by copying all files from the source Oracle home to the destination Oracle home, and files which are not part of the source instance will not be copied to the destination location. The source and destination servers should have same configuration and packages installed in order Oracle cloning to work. Starting from 10g onwards, Oracle supports cloning and users can easily clone existing Oracle installations. Cloning is similar to an Oracle installation except Oracle universal installation performs the actions in a special mode called “clone mode”. Cloning is a process of copying an existing installation to a different server or location.
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