HP ProLiant ML350 G5 Storage Server Administration Guide (5697-5854, September 2006)

5 File s erver management
This chapter begins by identifying new or improved file services in Windows Storage Server 2003 R2. The
remainder of the chapter describes the many tasks and utilities that play a role in file server management.
New or improve
d file services f eatures in Windows Storage
Server 2003 R2
Distributed File System
The Distributed File System (DFS) solution in Windows Storage Server R2 provides simplified, fault-tolerant
access to files and WAN-friendly replication. D FS consists of t wo technologies:
• D FS Namespaces, formerly known as Distributed File System, allows administrators to group
shared folders located on different servers and present them to users as a virtual tree of folders
known as a namespace. A namespace provides numerous benefits, including increased
availability of data, load sharing, and simplified data migration.
• DFS Replication, the successor to File Replication Service (FRS), is a new state-based, multi-master
replication engine that s upports scheduling and bandwidth throttling. DFS Replication uses a new
compression algorithm known as Remote D ifferential Compression (RDC). RDC is a “diff over
the wire” protocol that can be used to efficiently update files over a limited-bandwidth network.
RDC d etects insertions, removals, and rearrangements of data in files, enabling DFS Replication
to replicate only the deltas (changes) when files are updated.
The HP Storage Server Management Console provides access to DFS management tasks.
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