JSI Tip 6884. What is the meaning of the FRS log identifiers?

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Microsoft Knowledge Base article Q304914 contains:

SUMMARY

The File Replication service (FRS) creates text-based logfiles in the %Systemroot%Debug folder that you can use to troubleshootFRS-replication problems. To assist in reading these logs, identifiers areincluded in the log files that record what operation the FRS engine iscompleting. This article provides descriptions of these identifiers.

MORE INFORMATION

Identifiers that are included in the log files:

To more easily identify errors, warning messages,and milestone events in the log files, you might need to filter out lessimportant information. FRS log content is designed to be filtered easily. Alllog records have a date and time stamp and an identifying string annotated by:: with a letter or pair of letters between each colon. For example, a logentry that has a :U: as an identifying string includes information that isrelated to the NTFS USN journal. A log entry that contains information aboutdirectory service polling has an identifying string of :DS:. A tracking logentry has an identifying string of :T:, and summarizes a change order that hasfinished or is in the process of updating a given file or folder.

Usethe Findstr.exe utility to log events of interest. For example, to viewtracking records, use the findstr /I ":T:"%systemroor%tfrs_*.log command. For additional information aboutFRS log file size and verbosity settings, click the article number below toview the article in the Microsoft Knowledge Base:

221112 NT File Replication Service Log File Size and Verbosity Settings

For additional information about tracking log entries, click thearticle number below to view the article in the Microsoft Knowledge Base:

274581 Changes in the File Replication Service Logging Process in SP2