| Oracle® Enterprise Manager Cloud Control Administrator's Guide 12c Release 1 (12.1.0.1) Part Number E24473-15 |
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PDF · Mobi · ePub |
| Oracle® Enterprise Manager Cloud Control Administrator's Guide 12c Release 1 (12.1.0.1) Part Number E24473-15 |
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|
PDF · Mobi · ePub |
Enterprise Manager provides extensive monitoring and management capabilities for various Oracle and non-Oracle products. Used to manage your heterogeneous IT infrastructure, Enterprise Manager plays an integral role in monitoring and maintaining the health of your IT resources. It is therefore essential to make sure Enterprise Manager itself is operating at peak efficiency.
To help you maintain your Enterprise Manager installation, a variety of enhanced self-monitoring and diagnostic functionality is available from the Enterprise Manager console. These functions are designed to help you understand and monitor various components of Enterprise Manger, monitor/measure the quality of services Enterprise Manager provides, diagnose failures quickly, and manage Agents more easily.
This chapter covers the following topics:
Although Enterprise Manager functions as a single entity to manage your IT infrastructure, in reality it is composed of multiple components working in concert to provide a complete management framework from a functional standpoint. Beginning with Enterprise Manager 12c, the functions used to ensure reliability and performance for your monitored targets can be used to maintain Enterprise Manager itself. All major components of Enterprise Manager have been grouped into a single system. A special set of services has been created (based on the system) to model Enterprise Manager functions.
Management Features
Topology view that allows you to see all major components of Enterprise Manager and their current status.
Enterprise Manager dashboard displaying the overall health of Enterprise Manager.
Full control of the Agent directly from the Enterprise Manager console. Functions include:
View/edit Agent configuration properties.
View Agent(s) configuration history and compare the results against other Agents.
Perform Agent control operations (start/stop/secure).
The Management Services and Repository home page provides a detailed overview of the OMS and Repository.
Accessing the Management Services and Repository Home Page
From the Setup menu, click Management Services and Repository.
Overview Page
The Overview page displays a summary of the current status of the OMS and Repository. The Overview page also provides details on the status of the Job system and the console activity and two monitoring charts that indicate the backlog in terms of the files pending and the backlog on notifications pending delivery.
Each region provides specific information on the various operational areas of the OMS and Repository.
General: provides the Agent monitored status, availability and the host details of the Management Service in use, the monitoring Agent and the WebLogic administration server.
Overview: Displays the number and breakdown in term of status for the OMS, Agents, targets, active OMS repository sessions and severities detected within the past hour.
Repository Details: Provides physical information about the Management Repository and the host on which the database is located.
Alerts: Provides details on the metric errors recorded and when an alert was triggered. In-context links to Incident Manager are also provided.
Repository Operations Page
The Repository Operations page provides you with an overview of the status and performance of the Repository DBMS Jobs that handle part of Enterprise Manager's maintenance and monitoring functionality. These DBMS jobs run within the Management Repository and require no user input. Charts showing the Data Upload to Repository and the Backlog in Repository collection are provided The Scheduler Status region provides the status of the scheduler and the number of Job Queue Processes.
The Repository Scheduler Jobs Status region provides details of the DBMS Jobs regarding their status, throughput, processing time, the next scheduled run and the last scheduled run.
Use the Repository Operations page to view the performance of the Repository DBMS jobs. If you want more information, clicking a link brings you to a metrics detail page.
To determine how well the Management Repository is handling its share of the Enterprise Manager functionality, view the Throughput per second and Processing Time Percent (Last Hour) columns. If the Processing Time Percent (Last Hour) is large and the Throughput is low, there may be problems in that area of management.
Note:
Processing Time (%) Last Hour may exceed 100% if a job runs continuously for more than an hour. For example, if you see 125.00 in this column, it means that the job ran for 75 minutes (125 % of one hour).Management Services Page
The Management Services page lists the names of the Management Services and their status. When an OMS is decommissioned, status will be shown as down and delete button will be displayed, allowing you to remove the decommissioned OMS from EM.
By clicking on the individual Management Service, you can drill down to that OMS' target home page for explicit information and status.
The Enterprise Manager Topology page provides a graphical representation of the Enterprise Manager infrastructure components and their association. Each node in the hierarchy displays key information about the member type, the host on which it resides, and the number of incidents, if any. The incident icons on each of the nodes expand to display a global view of current status for each node in the hierarchy.
Note:
In order for the Enterprise Manager repository database to appear in the Topology page, you must first manually discover the database. Manual discovery is also required in order to have the database's metric data (Database Time (centiseconds per second)) displayed in the charts.Accessing the Enterprise Manager Topology
From the Setup menu, choose Management Services and Repository.
On the Management Services and Repository page, click on the OMS and Repository drop-down menu.
Choose Members and then Topology.
Enterprise Manager Charts
The Enterprise Manager Charts page displays eight charts representing key areas that together indicate the overall health of Enterprise Manager. These are Overall Files Pending Load -Agent, Job Step Backlog, Job Step Throughput (per second), Request Processing Time (ms), Database Time (centiseconds per second), CPU Utilization (%), Pages Paged-in (per second), Pages Paged-out (per second). Data can be viewed for the Last 24 hours, last 7 days or last 31 days.
Accessing the Enterprise Manager Charts
From the Setup menu, select Management Services and Repository.
On the Management Services and Repository page, click on the OMS and Repository drop-down menu.
Select Monitoring, the select Charts.
The Enterprise Manager Services dashboard provides details about the two primary services in-context: Enterprise Manager Jobs Service and the Enterprise Manager Console Service. The Status, Performance (gauged by means of specific metrics), Usage and Business Indicators (again through specific metrics), Component Status and the Service Level (%) for the two primary services for the Last 24 hours, last 7 days and last 31 days are detailed.
Accessing the Enterprise Manager Topology
From the Setup menu, choose Management Services and Repository.
On the Management Services and Repository page, click Launch EM Services Dashboard in the Overview region.
Beginning with Enterprise Manager Cloud Control 12c, management of Management Agents can be performed directly from the Enterprise Manager console. This provides a central point where all Management Agents for your managed targets can be compared, configured and controlled.
The Management Agent home page provides details for a single Management Agent. This page also lets you drill down for more detailed information. You can access an Agent home page by selecting it from the All Targets page.
The Summary region provides primary details of the Management Agent such as its status and availability. The Interaction with Management Service region provides details on the communication between the OMS and the Management Agent. The Status region provides further details on the Management Agent status such as the number of restarts, the action that the Management Agent is performing currently. The Performance, Usage and Resource Consumption charts provide further details on the Management Agent in graphical format. The Incidents region lists the incidents recorded for the Management Agent. The Monitoring section provides details on the targets that are being monitored by the Management Agent, metric extensions and management plug-ins deployed in the Management Agent.
Control operations for a single Management Agent can be performed on the Agent home page for that Agent.
Navigate to the desired Management Agent home page.
From the Agent drop-down menu, choose Control and then one of the control operations (Start Up/Shut Down, or Restart)
Note:
You must have at least operator privileges in order to perform Agent control operations.Upon choosing any of the above control menu options, a pop-up dialog requesting the credentials of the user displays. These operations require the credentials of the OS user who owns the Management Agent. At this point, you can either choose from a previously stored username/password, preferred or named credential. You also have the option of choosing a new set of credentials which could also be saved as the preferred credential or as a named credential for future use.
When storing a named credential or creating a new set of credentials, a Test button is shown, thus allowing you to verify if the credential information you just entered is valid. Once you are authenticated, the chosen control operation begins and continues even if the pop-up dialog is closed. Any message of failure/success of the task is displayed in the pop-up dialog.
When choosing the Secure/Resecure/Unsecure options, you must provide the requisite Registration Password.
Configuration operations for a single Management Agent can be performed from the Management Agent home page. To access the Management Agent properties page:
Navigate to the desired Management Agent home page.
From the Agent drop-down menu, select Properties.
Note:
You must have at least Configure privileges in order to perform Agent configuration operations.The properties on this page can be filtered to show All Properties, Basic Properties, or Advanced Properties. The Basic Properties are a simple name, value combination of a property and its value. Advanced Properties are also a combination of name and value but can also be grouped into categories. You must have at least configure privileges in order to modify the existing properties and set custom properties.
In order to perform control operations on multiple Management Agents, Enterprise Manager makes use of the Job system to automate repetitive tasks. Therefore, you must have Job privileges for controlling multiple Management Agents through a single action. To access
From the Setup menu, select Agents. The Management Agent setup page displays.
Select multiple Management Agents from the list.
Click one of the control operation buttons (Start Up/Shut Down/Restart/Secure/Resecure/Unsecure).
When you click on any of the control operations, you are taken to the Job creation wizard where you schedule a new job to perform the action on the selected Agents.
In the Jobs page, you can view the chosen Management Agents in Target section in the General tab. You can add more Management Agents by clicking the Add button. You then provide the parameters for the operation in the Parameters tab, if needed. The credentials must be specified in the Credentials tab where you can either choose from a previously stored username/password, preferred, or named credential. You also have the option of choosing a new set of credentials which could also be saved as the preferred credential or as a named credential for future use.You are given the option to start the job immediately or schedule the job for a later time. At this point, you can also create a repeating job by specifying the job start time, the frequency, and the end time.
The Access tab displays the Administrator details and the access levels they have to the job. You can then add a new administrator or modify the access level to View or Full, if you have the requisite privileges.
Note:
Administrators with insufficient privileges can also schedule jobs for these control operations, but in this situation, the jobs will not complete successfully.As with multi-Agent control operations, you can also perform Agent configuration on multiple Agents in the same way. This greatly simplifies standardizing Agent configurations across your enterprise. To access Agent properties:
From the Setup menu, select Agents. The Management Agent setup page displays.
Select multiple Management Agents from the list.
Click Properties. As with any multi-Agent operation, configuration is implemented using the Job system.
In the Jobs page, you can view the chosen Management Agents in the Target section of the General tab. You can add more Management Agents by clicking the Add button if necessary. In the Parameters tab, you provide the modified value for a particular set of properties that you want to change. You can also set a custom property for the chosen agents. No credentials are required for modifying Agent properties.
The Access tab displays the administrator details and the access levels they have to the job. You can then add a new administrator or modify the access level to View or Full if you have the requisite privileges.
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