How does DFS Replication performance compare with FRS?
DFS Replication is much faster than FRS, particularly when small changes are made to large files and RDC is enabled. For example, with RDC, a small change to a 2 MB PowerPoint® presentation can result in only 60 kilobytes (KB) being sent across the network—a 97 percent savings in bytes transferred. RDC is not used on files smaller than 64 KB and might not be beneficial on high-speed LANs where network bandwidth is not contended. RDC can be disabled on a per-connection basis using DFS Management MMC snap-in (DFSmgmt.msc).