When a job operation fails, one or more events may be generated. These can be viewed through any of the interfaces to Oracle VM Manager and are displayed in the user interface as flagged with yellow or red icons in the navigation tree. If an object has an error event associated with it you must acknowledge the event to clear the error and return the object to normal operations. For example, this can occur if an Oracle VM Server or virtual machine is stopped as a result of an error. Oracle VM Servers, virtual machines, repositories and storage objects can have error events associated with them. To acknowledge events, see the object's Events perspective in Events Perspective in the Oracle VM Manager User's Guide.