Mirroring 2.0 in EPiServer 6 has several functions for logging.
On both the source and the target side
1) Off-line logging are set up in the web.config file for the source mirroring server
Example:
<mirroringMonitoting offlineLoggingEnabled="true" offlineLogPath="file path">
2) The log4net config is set up with a normal EPiserverLog.config file
3) The most verbose is to write all send messages with WCF logging (see
Look at WCF logs for more information).