Blackouts and Notification Blackouts help you maintain monitoring accuracy during target maintenance windows by providing you with the ability to suspend various Enterprise Manager monitoring functions for the duration of the maintenance period. For example, when bringing down targets for upgrade or patching, you may not want that downtime included as part of the collected metric data or have it affect a Service Level Agreement (SLA).

Blackout/Notification Blackout functionality is available from both the Enterprise Manager console as well as via the Enterprise Manager command-line interface (EMCLI).