Saturday, February 6, 2010

EM Widget Review for EM Version 10.2.0.5

A cool feature has been developed by Oracle to run on top of Enterprise Manager. Desktop Widgets are available for download from Oracle.com. There are currently three widgets that can be downloaded. The widgets are developed on Adobe Air which allows them to run as lightweight internet applications.

The three widgets available are:
Target Search and Monitoring
High-Load Databases
Service Level Monitoring

Of these three I have found High-Load Database widget to be the most useful in my environment. This widget has a screen which can be flipped onto two sides. One side provides a bar graph summary of active sessions of the top five databases. The graph provided ties back to the performance screen in EM. The other side of the widget's screen shows recent ADDM findings. Using this widget will help the DBA develop a feel for the expected activity on the systems. When the load seems high or the ADDM findings show something odd, click on the database name to bring up a login screen in EM to direct to the performance tab of the target database.

Note that these widgets should be treated as a supplement to EM. They do not replace the metrics and automatic monitoring that EM provides. These are a secondary tool to assist with monitoring of the systems.

The widgets contain a customize menu option which will control refresh rate, display options, and other items. Download these widgets and try them out.

REFERENCES

OEM Widget Page

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