This chapter provides an overview of Oracle Enterprise Manager Cloud Control (Enterprise Manager Cloud Control) and helps you understand its architecture and the various core components that are integrated within the product. For information on the releases Enterprise Manager Cloud Control has had so far, refer to Oracle Enterprise Manager Cloud Control Advanced Installation and Configuration Guide.
Enterprise Manager Cloud Control is system management software that delivers centralized monitoring, administration, and life cycle management functionality for the complete IT infrastructure, including systems running Oracle and non-Oracle technologies. Your environment may comprise multiple Oracle Databases, Oracle WebLogic Servers, Web applications deployed on these servers, hosts running these targets, and so on. Enterprise Manager Cloud Control offers a solution that allows you to monitor and manage the complete Oracle IT infrastructure from a single console.
With a broad set of end-to-end monitoring, administration, configuration management, provisioning, and security capabilities, Enterprise Manager Cloud Control reduces the cost and complexity of managing computing environments.
Figure 1-2 shows a sample Enterprise Manager Cloud Control architecture and illustrates how these core components fit into the architecture. In Figure 1-2, the load balancer and the multiple OMS instances are depicted only to indicate how a sample Enterprise Manager Cloud Control architecture would look in a large organization.
The Management Agent is an integral software component that enables you to convert an unmanaged host to a managed host in the Enterprise Manager system. The OMS is a Web-based application that orchestrates with the Management Agents and the Plug-Ins to discover targets, monitor and manage them, and store the collected information in a repository for future reference and analysis.
The Management Repository is a storage location where all the information collected by the Management Agent gets stored.
The OMS uploads the monitoring data it receives from the Management Agents to the Management Repository. At the time of installation, the Enterprise Manager Cloud Control Installation Wizard configures the Management Repository in your existing, certified database. Plug-Ins are pluggable entities that offer special management capabilities customized to suit specific target types. Plug-ins have independent release cycles, so every time you have a new version of an Oracle product released, you will have a new version of the plug-in released to support monitoring of that new product version in Enterprise Manager Cloud Control. Table 1-1 lists the default plug-ins that are installed with a new Enterprise Manager system. Enables you to discover, monitor, and manage Oracle Database and related targets such as Oracle Real Application Clusters (Oracle RAC), Oracle Automatic Storage Management (Oracle ASM), and so on. Enables you to log in to My Oracle Support from within the Cloud Control console, search the knowledge library for notes and documents, raise service requests, and create patch plans and templates for patching monitored targets. The Enterprise Manager Cloud Control console is the user interface you see after you install Enterprise Manager Cloud Control. Scripting on this page enhances content navigation, but does not change the content in any way. Today, one of my blog reader asked how we can add new agent software to Oracle Cloud Control.
Is there a possibility to implement new platform specific agents in the Cloud Control without using Selfupdate … meaining is there a possibilty to download the Agent software manually out of the Cloud Control ? Need some help again i am installing the new agent12r2 everything goes fine with the install agent show as up but when i go in EM i get this any help please. I’m trying to deploy AGENT12c on HP-UX Itanium machine but when i check agent updates i realised that the agent is available only for Linux platform. I continue to get the following error when trying to deploy and agent from Windows Server 2012. On the OMS machine, take a backup copy of the file-$ OMS_HOME \ oui \ prov \ resources \ I divided the last command to two lines, using \ symbol, so it fits into the code-window on my website but you may write it one line (without \ symbol). After you import the plugin, you’ll see it on the setup > extensibility > plugins page. It’s highly recommended to backup your EM repository and software before deploying a plugin to OMS server.
So we deployed the plugin to our OMS, now it’s time to deploy the plugin to an agent.
I have tested the plugin for only 2 days, but I can say that it’s a great addition to EM12c.

The PostgreSQL plugin collects important metrics, so you can define thresholds and use Incident Management features of Enterprise Manager.
One question I have, is can the Oracle agent and PostgeSQL database be associated with different users on a Linux system? Everything is working fine, except that pg_stat_statements in not checked in Overview page of postgres in OEM 12c. If you have EM12c Cloud Control installed (it’s a separate product), you can deploy an agent to the server hosting PostgreSQL, or use any existing agent to monitor the PostgreSQL database.
Agent ile bagland?g?n kullan?c?n?n pg_stat_statements’a erisimi vard?r diye tahmin ediyorum. Also, creating a database using DBCA and attempting to register both EM-Express and OEM 12c CC during DBCA create seems to disable EM-Express.
Uday: Hi Wissem, Once we apply the level 1 incremental backup to datafile copy it is no longed required.
Oracle database patching is one of the most frequently executed maintenance activities that every DBA does in his life.
Do patch prerequisite checks upfront, long before the patching itself to have enough time to analyze the possible issues, create and test the plan on fixing them. To determine whether you have patches in the Oracle home that conflict with the one you want to install, and to get the necessary conflict resolution patches, you have to identify the patch conflicts.
The fastest and easiest way to identify Patch Conflicts is using Oracle Enterprise Manager (OEM) Cloud Control. The second easiest way to validate the patch is to use the Patch Recommendations and Patch Plans features on the Patches & Updates tab in MOS.
So using this method and MOS functionality you crosscheck your database configuration stored in the Target on MOS (that includes information about existing installed patches on your database) against the new patch you want to install. With this method you do not need to download the new patch itself on your database server and do a manual patch conflict check with OPatch utility.
If you do not use MOS Configuration manager, the next possible option is using MOS Conflict Checker tool. So that was the most important part of Oracle database patching: some best practices, tips and code examples for doing patch prerequisite checks using OEM Cloud Control, MOS and OPatch utility. We welcome thoughtful and constructive comments from readers.If you want your own picture to show with your comment? Being an Oracle Certified Professional database administrator I have more than a decade full-time DBA experience. In addition, install the 32-bit version as well as the 64-bit version of glibc-devel-2.5-49.
You can, of course, use the individual product consoles to monitor the status of each of these targets, but it becomes cumbersome to shuttle between multiple console windows and track the performance of each of these targets using so many windows. In addition, it provides support for business-driven IT management and business-centric top-down application management to manage your business services, user experience, and infrastructure. Robust service-level management functionality within Enterprise Manager Cloud Control dramatically improves service levels through rich transaction and end-user performance monitoring and deep diagnostics for multi-tier Internet applications.
They are not a prerequisite or a requirement for an Enterprise Manager system installation. The Management Agent works in conjunction with the plug-ins to monitor the targets running on that managed host. It consists of objects such as database jobs, packages, procedures, views, and tablespaces. The Management Repository then organizes the data so that it can be retrieved by the OMS and displayed in the Enterprise Manager Cloud Control console. Unlike the earlier releases of Enterprise Manager, in Enterprise Manager Cloud Control, the plug-ins work in conjunction with the OMS and the Management Agent to monitor every target in your environment. This simplifies things because you no longer have to wait to upgrade your Enterprise Manager system to support a new product version; instead you can upgrade your plug-ins to monitor the new product version. In addition to these plug-ins, you can optionally install other plug-ins available in the software kit (DVD, downloaded software bundle, and so on). With the help of the console, you can monitor and administer your entire computing environment from one location on the network. He says he installed Cloud Control on a Linux server and now he wants to deploy cloud control agents to Solaris Servers.

Unfortunately different databases need different tools to monitor, and implementing a standard monitoring procedure for all databases becomes a real problem. I do not know when it will be added to self-update of Enterprise Manager but for now, you need to downloaded it manually.
EM will do some prerequisite check, click continue to deploy page, click deploy (it will not restart the agent, so it can be deployed anytime).
The PostgreSQL plugin of Blue Medora helps you easily monitor PostgreSQL instance, examine tables, indexes, connections and queries.
I have also tried to use this plugin to monitor Postgres Plus databases and it seems it works without any problems. The EM agent (and the PostgreSQL plugin) connects to the PostgreSQL using database login credentials (SQL authentication).
I have also created the postgres target but it does not seem to be giving me all the information.
We have the OEM configured in oracle database on the Linux platform and postgreSQL Database (9.1) is present window 2008 server.
The task is fairly simple and straight forward using the patch instructions from My Oracle Support (MOS). These features work ONLY in conjunction with MOS Targets that are created using Oracle Configuration Manager. It also offers support for monitoring certain non-Oracle products, for example, IBM WebSphere Application Server, Microsoft SQL Server, Juniper Networks NetScreen Firewall, and so on.
If you do not have a load balancer, then the Management Agents communicate directly with the OMS instances. The OMS is deployed to the Oracle Middleware home (Middleware home), which is the parent directory that has the Oracle WebLogic Server home, the OMS home, the Management Agent home, the plug-in home, the Java Development Kit (JDK), the OMS instance base directory, the Oracle WT directory, the Oracle Common directory, and other relevant configuration files and directories. Since data is stored in the Management Repository, it can be shared between any number of administrators accessing the Enterprise Manager Cloud Control. All the systems and services including enterprise application systems, databases, hosts, middleware application servers, listeners, and so on, are easily managed from one central location. Choose the one you want to download and click download to create a background job to download the agent (you can schedule it to run immediately or a later time).
I am trying to download the SQL Server agent, but all I see when I open then Agent Software link is the linux agent software I have already installed.
Good thing is Oracle Enterprise Manager is an extendable software supporting 3rd party plugins, and there are companies like Blue Medora which focuses on the product enhancements for Enterprise Manager. After you download the zip file, copy the zip file to your Enterprise Manager 12c server, and unzip it. However in this article I’d like to highlight the importance of different Patch Prerequisite Checks that you have to perform before doing the patching itself. If no resolution is found, it will automatically request a resolution, which you can monitor in the Plans and Patch Requests region of the Patches & Updates tab. Instead you generate the Inventory file on the database server with OPatch utility and upload it into MOS Conflict Checker tool.
While deploying the OMS, the Enterprise Manager Cloud Control Installation Wizard installs Oracle WebLogic Server if it does not already exist in your environment. In the earlier releases, plug-ins enabled you to monitor only third-party targets, but in Enterprise Manager Cloud Control, plug-ins enable you to monitor all types of targets in your environment.
Blue Medora released a plugin to monitor PostgreSQL for Oracle Enterprise Manager, and I just deployed it to our servers.
The PostgreSQL Plugin can remotely monitor databases, but I recommend you to monitor locally unless you have resource problems on the PostgreSQL database servers.
I think the entire success of patching exercise depends mostly on this step as seen on the below table that represents major PSU patching steps and approximate time lines.
In case you need to know how to deploy EM12c agents to host, you can read my previous blog posts. The rest of this draft document describes some best practices, tips and code examples for doing patch prerequisite checks using OEM Cloud Control, MOS and OPatch utility.

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