Mastering Active Directory - Second Edition

FRS versus DFSR

Windows Server 2000 and 2003 use FRS to replicate the SYSVOL folder content between domain controllers. With Windows Server 2008, FRS was deprecated and Microsoft introduced DFS for SYSVOL folder replication:

FRS	DFSR
FRS is an outdated protocol and no development or investment was made into it after the release of Windows Server 2003 R2. No bug fixes or updates were released. Outdated protocols can lead to security threats to systems, as they cannot be tested against modern security threats.	Continuous improvements and investments were made toward the DFSR protocol and it was continuously tested against emerging threats.
FRS uses the last write wins algorithm. When the system detects a file change in one of ...