This post talks about creating a Blackout in Oracle Enterprise Manager.
We setup Enterprise Manager to monitor, notify any issues with the Database, Middleware and application stack. Enterprise manager sends alerts if it finds any issues with the systems or any thresholds being exceeded their limits.
If you need to perform a controlled activity like a restart or patch apply, then you may need to bring down the server or database. While you bring down, the EM will start bombarding with Alerts and this might cause unnecessary emails to be sent, and the important alerts might get missed.
Enterprise Manager provides an option to create a Blackout specifying the time and the targets during which no alert will be sent to the recipient
Steps to create a Blackout
1. Go to
Enterprise -> Monitoring -> Blackouts
Click “Create” or if there is a previous
one created that you want to use as template click “Create Like”
2. Provide 'Blackout Name' (Eg. Restart OSB server). Comments and Reason are not required fields.
Add targets (targets could be Database, Middleware, Cluster, Host servers, BI, Security suite, and other Oracle Products). Click Next button
3. Validate the Member Targets which are dependant on the 'Target' selected in the previous page.
4. Provide the schedule for the Blackout.
Blackout can be started immediately and provided with a duration.
Blackout can also be scheduled to start and end at certain times.
5. If the Blackout needs to be repeated weekly/daily, the Repeating drop down has to be selected with the appropriate option
