Incidents and alerts are enabled by default. You can disable incidents from generating on individual assets or a group of assets. You can disable monitoring policies and prevents incidents and alerts from generating on all assets in your data center.
About Maintenance Mode: Disables incidents from generating on individual assets or a group of assets. This feature is designed to temporarily disable incidents while you perform maintenance tasks.
About Disabling Alert Monitoring: Disables monitoring policies and prevents incidents and alerts from generating on all assets in your data center.
Neither option disables the collection of data on managed assets.
Maintenance mode is designed to disable assets from generating incidents temporarily. This mode is useful when you plan to power off a hardware asset, reconfigure a system manually, or perform maintenance on a system and you do not want these incidents to be reported.
Monitoring still occurs and alerts are still generated on the asset while in maintenance mode. View alerts by selecting the Alerts subtab of the Incidents tab.
When you place an asset in maintenance mode, the severity badge of unassigned and assigned incidents affecting the asset and its children is not propagated in the asset hierarchy in the Navigation pane.
When you place a Proxy Controller in maintenance mode, you disable incidents from generating on the Proxy Controller and you disable all jobs that go through the Proxy Controller, including discovering, managing, and migrating assets.
When you place an Oracle VM Server that is a member of a server pool in maintenance mode, all of the virtual machines running on the Oracle VM Server are automatically migrated to other Oracle VM Servers in the server pool, if they are available. When the Oracle VM Server is the master Oracle VM Server in the server pool, this role is moved to another Oracle VM Server in the server pool, if available. While in maintenance mode, you cannot create or place guests and guests cannot be recovered to the server from another control domain. When the Oracle VM Server is not a member of a server pool, or other servers are not available in the server pool, the virtual machines are stopped. To manually bring down the control domain and all of its guest domains, use the action Disable Automatic Recovery on the virtual machines to disable the auto-recovery, then put the control domain in maintenance mode.
Procedure to place assets in maintenance mode.
Procedure to remove assets from maintenance mode.
When the maintenance operations are completed, use the Remove From Maintenance action to restore the display of severity badges.
You can disable alerts and incidents for all assets in your data center by disabling all of the monitoring policies.
When you disable the policies, the monitors are no longer deployed on the assets. When you enable monitoring that you previously disabled, the monitoring rules defined by the default monitoring policies are reapplied to all of the assets.
Disabling monitoring disables the evaluation of monitoring rule conditions against collected data and prevents the deployment of monitors across your data center, it does not disable the collection of data on managed assets.
Disabling all monitoring for your data center is only available from the command line interface. See Oracle Enterprise Manager Ops Center Command Line Interface Guide for more information. See About Maintenance Mode for information about temporarily disable the software from generating incidents.