Explanation/Reference:
Unexpected - This level records messages about events that cause solutions to stop processing. When set to this level, the log will include events at the Unexpected, Exception, Assert, and Critical levels.
Monitorable - This level records messages about all unrecoverable events that limit the functionality of the solution but do not stop the application. Whenset to this level, the log also includes events that the Unexpected setting records.
High - This level records all events that are unexpected but which do not stop the processing of a solution.
When set to log at this level, the log also includes all events that the Monitorable setting records.
Verbose - When set to this level, the log includes most actions. Verbose tracing produces many log messages. This level is typically used only for debugging in a development environment. When set to log at this level, the log will also include all events that the Medium setting records.