How to migrate EM12c R3 OMS and repository to a new host

Very useful, even if you’re moving parts of OEM 12c from one host to another, or modifying the filesystem mounts.

Pardy DBA

(EDIT 20130917: If you simply need to change the IP address of your OEM server, please review MOS note 1562029.1.  The procedure in that note may allow you to change your OEM server’s IP address without following the lengthy process I describe below.)

In order to save power in our data center, I need to migrate my EM12c R3 environment from the host where it currently runs to a new host.  I have a simple configuration, with a single OMS, no load balancer, and the repository database runs on the same host as EM12c R3 itself.  I also have BI Publisher installed and integrated with EM12c, and a few third party plugins as I’ve detailed elsewhere on this blog.  If you use an OS other than Linux x86-64 I suggest you research thoroughly as this procedure may or may not apply to your environment.  Further, if you have a multi-OMS…

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