This article is about the group of Chinese dialects. For the official language, Putonghua, see Standard Chinese. For the administrative language of China during the Ming and Qing dynasties, see Mandarin (late imperial lingua franca).
Distributed File System Replication. The Distributed File System Replication (DFSR) service is a state-based, multimaster replication engine that supports replication scheduling and bandwidth throttling. DFSR uses a compression algorithm known as remote differential compression (RDC).
Shadow Copy (also known as Volume Snapshot Service, Volume Shadow Copy Service or VSS) is a technology included in Microsoft Windows that allows taking manual or automatic backup copies or snapshots of computer files or volumes, even when they are in use.