You will define a corrective action for starting the listener if it goes down. First click the All Targets tab to get a list of all targets.

To filter the list of all All Targets to show only Listener targets, select Listener from the Search drop-down list and click Go.

Select any listener from the list.

In the listener home page that comes up, scroll to the bottom of the page and click Metric and Policy Settings in the Related Links section.

To define a corrective action for when the listener is detected to be down, click the pencil icon for the Status metric.

On this page, you can define the corrective action. To define a corrective action click the Add button.

Select OS Command from the drop-down list and click Continue.

Provide a proper name and description and click the Parameters subtab.

Select Script from the Command Type drop-down list. In the OS Script box, enter the commands as shown below in the screenshot. Click the Credentials subtab.

Select Override Preferred Credentials option button, enter your Host credentials and then click Continue.

You can see the newly defined corrective action. You can use the Remove button to remove the corrective action in the future when it is not needed. Click Continue.

A new corrective action is defined. Click OK to save your changes.

The corrective action is successfully defined. Click the OK button.

You return to the listener home page.

To access the monitoring templates functionality, click Setup from the top-right corner.

Click Monitoring Templates from the left-navigation bar.

To create a new monitoring template click the Create button.

A Monitoring Template is initially prefilled by copying monitoring settings from a target. Choose the target that has the monitoring settings that you would like to use in the template. Click the flashlight icon to select the target.

In this exercise you use a database target. Select Database Instance from the Target Type drop-down list. You can choose any of the available databases. Select the database target and click Select.

The database you selected should now be in the Target field. Click Continue.

Specify a name for the new template and click the Metric Thresholds subtab.

On this page you can edit the thresholds of the metrics that are part of this template. For this exercise we will do a few simple changes. Change the Warning Threshold for the Archive Area Used (%) to 90 and also click the link under the Collection Schedule column to change the collection schedule.

Change the frequency to 15 minutes and click Continue.

You can now see the updated Collection Schedule. Click the Policies subtab.

This template does not involve any policy settings, therefore you can remove the policy rules from the template. Click the Select All link to select all the policies and then click the Remove button.

Note: Removing of policy rules from the template does not remove or impact any policy rules defined on the destination target when you actually apply the template to a target.

Click Yes to confirm.

You might have to do steps 11 and 12 repeatedly until all policies rules have been removed from the template. Once you're done, click OK to save the changes.

A new template is successfully created. The next step is to apply this template to a target. Select the template that you just created and click the Apply button.

Note: When applying a template to a target the user that is doing the Apply operation needs at least Operator privileges on the destination targets. Different templates can be applied to the same target. If these templates contain the same metric, then the settings from previously applied templates could be overwritten. Thus collaboration among administrators is recommended when using templates. Administrators also have an option to prevent templates from overriding a target's metric settings.

You have to select the destination target to which this template will be applied. Click the Add button.

You can choose any set of targets or groups on which the template will be applied and click the Select button.

You can select multiple targets or groups before you apply the template. In this case you are only selecting one target. Click OK to apply the template.

The new template is successfully applied to the selected target.

Click the Targets tab.

In this exercise you will black out a database. Click the Databases tab.

Select any database from the list. .

The database's home page appears. Click the Black Out button.

The Create Blackout wizard launches in context of the target. Note that the database target has been preselected in the Selected Targets list. Click Next on the Properties page..

Keep the default immediate schedule for 1 hour. This means the black out is scheduled to run immediately and will last for 1 hour. Click Next.

Click Finish.

Note: With the new release of Grid Control you can also create a blackout for any target from its homepage.

Blackout is successfully created. Click the target in the Target list.

You can see that the Status is Under Blackout. To stop the blackout click the End Blackout button.

Click Yes to confirm.

The request to end the Blackout has gone through successfully. Click the target in the Target list.

At the end of the blackout, the status of the target is reevaluated. The target home page will then show you the current status of the target.

You will be creating a group that you can manage collectively through the group management features in Oracle Enterprise Manager 10g Release 2. Click the Groups tab.

Click the Add button to create a new group.

Give an appropriate name for the group and click the Add button to select the targets.

Select Host from the Target Type drop-down list. Select two targets and click Select.

Click the Add button to add more targets.

Select Database Instance from the Target Type drop-down list. Select two targets and click Select.

Click OK to create the group.

The group is successfully created. Click the group that you just created.

This is the home page for the group and shows you the overall health of the group. You can get an overview of the combined availability status, open alerts and policy violations, and configuration changes over the past 7 days across all group members. Click the Charts subtab.

Default performance charts are predefined for you based on the members of the group. These charts enable to you monitor the overall performance of the group.

We will next look at the System Dashboard for the group. To launch the dashboard, click the Launch Dashboard button. The System Dashboard enables administrators to easily keep a proactive eye on the overall health of the group.

The system dashboard is predefined with a set of metrics based on the members of the group. You can customize the system dashboard for your particular environment. Click the Customize link at the top-right corner to customize the dashboard.

Select the Group by Target Type option button and Show Alert Details check box. Then click OK.

You can now see that the member targets of the group are not listed individually but a summary of all target types in the group is shown. A rollup of the status and alerts for members within each target type is also shown, with drilldowns to get more details. Once you are done reviewing the dashboard information, click the link Group:Generic Group to return to the group home page.