For audit log streams, such as the OPERLOG log stream, the installation must often manage how much data is kept in the log stream. Using automatic deletion and a retention period, you can manage the amount of time log data resides in the log stream, cutting down also on the storage consumed by log data in this log stream. For example, assume that log AUDIT1 requires that data be kept for no more than 3 days and then physically be deleted. For AUDIT1, you would specify Retyped and AUTODELETE(YES) to make sure that data is kept for no more than 3 days.