Distributed File System Replication (DFS-R) in Windows Server 2003 R2 provides efficient multi-master file replication between servers, making it ideal for keeping branch office file shares synchronized with the central data center. DFS-R uses Remote Differential Compression to minimize WAN bandwidth consumption by transmitting only the changed portions of modified files.
DFS Namespace and Replication Design
Design your DFS namespace to provide users with a single, location-independent path to shared files. A domain-based namespace like \\\\domain.com\\shares presents a unified view regardless of which physical server hosts the data. DFS referrals direct clients to the nearest server based on Active Directory site configuration, optimizing access for branch office users.
Configure replication schedules to use available WAN bandwidth without impacting business-critical traffic. DFS-R supports bandwidth throttling and scheduling to restrict replication to off-peak hours. For sites with limited connectivity, schedule full replication overnight and allow only priority changes during business hours.
Monitor replication health using the DFS Management console and diagnostic reports. Replication conflicts occur when the same file is modified on multiple servers simultaneously. DFS-R resolves conflicts by keeping the most recently modified version and moving the loser to the ConflictAndDeleted folder. Review this folder regularly to ensure users are not losing important changes due to simultaneous edits.