Oracle Enterprise Manager Cloud Control Notes

EM cloud control delivers centralized monitoring, Administering the oracle and non-oracle systems.

Architecture of Oracle EM Cloud Control:

EM Cloud control includes the following components

                - Oracle Management agent

                - Oracle Management Service

                - Oracle management Repository

                - Plug-ins

                - EM cloud control console

Oracle Management Agent:

                - OMA enables us to convert an unmanaged host to a managed host in the Enterprise manager system

                - It works in conjunction with Plug-ins to monitor the targets running on the managed host.

                - By installing OMS for the first time we receive a central agent.

                - The central agent monitors the first OMS host and the targets running on the first OMS host

                - To monitor other hosts and the targets running on the other hosts, we must install Standalone Management Agent on the each hosts.

Oracle Management Service:

                - OMS is a web based application that organizes OMA and plug-ins to discover targets, monitor and manage them and stores then in the repository for the future reference and analysis.

                - It also renders (Provide/give) user interface for the EM Cloud control

                - OMS is deployed in the middleware home which is the top directory for Oracle Weblogic server, JDK, OMS, Plug-Ins, Oracle WT directory, Oracle Common, Other relevant configuration files and directories.

                - EM Clod Control installation wizard install automatically install the Oracle weblogic server and JDK while installing OMS

Oracle Management Repository:

                - It is storage location for keeping all the information collected by agents.

                - It consists of objects like tablespaces, jobs, packages, procedures and views.

                - The OMS uploads the monitoring data it receives from the OMA to management repository and then management repository organizes the data in the repository and makes it available to OMS to display on the EMC console.

                - At the time installation EMCC installation wizard configures the management repository in the existing certified database, it doesn't install a new database

Plug-Ins:

                - Pug-Ins are pluggable entities, Had special management capabilities to suit specific target types.

                - Plug-ins work in conjunction with OMS and management agent monitor every target in the environment.

                - Plug-ins have independent release cycles, So every time a new oracle product is released a supported plug-in for the product will be released to support monitoring of that new product.

Oracle JVMD Engine:

                - JVMD enables to diagnose the performance problems related to java applications

                - From 13c R1, JVMD engine will be installed and configured by default on the OMS as part of the fusion middleware deployment.

Oracle BI Publisher:

                - BI is oracle's primary reporting tool

                - From 13c R1, Oracle BI publisher will be installed and configured by default on the OMS.

EMCC Console:

                - It is user interface for the oracle EMCC.

                - With the help of the console we can monitor and administer the all targets.

                - 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.

EMCTL:

                - It is a command line tool where we can execute certain tasks on the OMS and management agents.

                - We can use it for starting and stopping OMS, agents and Setting up properties on OMS, list of targets being monitored by a specific management agent.

EMCLI