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Operating System Features 19

Distributed File System (DFS)

The Distributed File System (DFS) solution in Windows Storage Server 2003 R2 x64 Edition With SP2

provides simplified, fault-tolerant access to files and Wide Area Network-friendly replication.

Distributed File System consists of two technologies:

• DFS Namespaces — DFS Namespaces allows administrators to group shared folders located on different

servers and present them to users as a virtual tree of folders called 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), DFS Replication is a new

state-based, multimaster replication engine that supports scheduling and bandwidth throttling.

DFS Replication uses a new compression algorithm called Remote Differential Compression (RDC).

RDC is a protocol that can be used to efficiently update files over a limited-bandwidth network.

RDC detects insertions, removals, and rearrangement of data in files, enabling DFS Replication to

replicate only the deltas (changes) when files are updated.

Storage Management for SANs

Storage Manager for SANs is an MMC snap-in that helps you create and manage logical unit numbers (LUNs)

on Fibre Channel and iSCSI disk drive subsystems in your SAN. Storage Manager for SANs can be used

on storage subsystems that support Virtual Disk Service (VDS).

Use Storage Manager for SANs to create and assign LUNs, manage connections between the LUNs and

the servers in your SAN, and set the security properties for iSCSI storage subsystems.

Indexing Service

Indexing Service extracts information from a set of documents and organizes the information for quick

and easy access by the search function for systems running Windows 2000, Windows XP, or Windows

Storage Server 2003 With SP2. This information can include the document’s contents, characteristics,

and parameters such as the author's name. When the index is created, you can query the index for

documents that contain key words, phrases, or properties.

For example, you can query all documents containing the word "product," or you can query for all

Microsoft Office documents written by a specific author. Indexing Service returns a list of all documents

that meet your search criteria.

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Dell R2 Guía de usuario Pagina 19