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Oracle® Enterprise Manager Cloud Control Upgrade Guide
12c Release 1 (12.1.0.1)
E22625-09
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21 Upgrading Multi-OMS Environment

To upgrade an Enterprise Manager system that has multiple OMS, follow these steps:

  1. Upgrade the first OMS along with the Management Agents in your system. You can use any of the upgrade approaches described in this guide — Chapter 4, Chapter 5, or Chapter 6.

  2. After upgrading the first OMS in your system, do the following:

    • If you upgraded the first OMS with 2-System upgrade approach, then for every other host where an additional OMS of the earlier release is running, install a new Oracle Management Service 12c using the Add Management Service deployment procedure available in the Enterprise Manager Cloud Control console.

      For information about installing an additional OMS using the Add Management Service deployment procedure, refer to the Oracle Enterprise Manager Cloud Control Basic Installation Guide.

    • If you upgraded the first OMS with 1-System upgrade approach, then for every other host where an additional OMS of the earlier release is running, invoke the Enterprise Manager Cloud Control Installation Wizard, and on the Install Types screen, select Upgrade an Existing Enterprise Manager System, and then, select One System Upgrade. Then, select the OMS home you want to upgrade.