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EM 12c: How to Upgrade to EM 12.1.0.5 - Two System Method (Doc ID 1363162.1)

Last updated on MAY 02, 2021

Applies to:

Enterprise Manager Base Platform - Version 10.2.0.5 to 12.1.0.2.0 [Release 10.2 to 12.1]
Information in this document applies to any platform.

Purpose

This document describes in detail the Steps for Upgrading to Enterprise Manager 12c using Two-System Method from a 10.2.0.5 / 11.1.0.1 Grid Control.

Scope

This document describes in detail the Steps for Upgrading to Enterprise Manager 12c R2 using Two-System Method from a 10.2.0.5 / 11.1.0.1 Grid Control. This approach enables you to install Enterprise
Manager Cloud Control on a host that is different from the host where your existing Enterprise Manager system is running. This approach does not upgrade the Management Repository in the existing
database, but upgrades the one in the backed up database, thus enabling two Enterprise Manager systems to exist. Since a new Enterprise Manager system co-exists with the old one, there is no or near zero downtime involved.

Details

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In this Document
Purpose
Scope
Details
 Pre-Upgrade Steps
 1.) Apply Upgrade Console Patch
 2.) Select Upgrade Type
 3.) Identify host where you plan to upgrade your existing OMS
 4.) Manage Software
 5.) Analyze your environment is ready before you start Agent Upgrade.
 OMS and Repository Upgrade Steps
 6.) Upgrade Oracle Management Service and Repository
 7.) Link the earlier release of the Management Repository with the upgraded Management Repository
 8.) (Only if your old Enterprise Manager had Software Library configured) Reconfigure the Software Library in Enterprise Manager Cloud Control
 9.) Agent Upgrade Steps
 10.) Perform Postupgrade Task
References

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