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File Services Role. Distributed File System. Liran Zamir Project Manager Malam-Team liranz@malamteam.com. DFS Overview. Enhances Microsoft file servers Consistent namespace (DFS-N) Data Replication (DFS-R) Started back on Windows 2000 Enhanced capabilities on Win 2008. FREE !.
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File Services Role Distributed File System Liran Zamir Project ManagerMalam-Team liranz@malamteam.com
DFS Overview • Enhances Microsoft file servers • Consistent namespace (DFS-N) • Data Replication (DFS-R) • Started back on Windows 2000 • Enhanced capabilities on Win 2008 FREE !
DFS Usage • Ease of access via Server/Domain Namespace • Central file server backup of remote sites • Reduced WAN traffic with local branch replica • AD Site awareness • High Availability via folder replication in the LAN • Replication can be scheduled for off-hours
DFS Overview DFS Folder Targets DFS Namespace (DFS-N) Namespace Server \\SEA-SVR-01\Tools DFS Replication (DFS-R) \\Contoso\Public Tools Namespace Root \\NYC-SVR-01\Tools Software Folder Tools Tools Folders with Targets \\SEA-SVR-02\Training Training Guides Training Guides
Windows 2008 DFS Namespaces • Windows 2008 Mode Domain Namespaces • Eliminates 5000 link limit for domain namespaces • Requires • Windows 2008 Namespace Servers • Windows 2008 Domain Functional Level • Access Based Enumeration (ABE) support • For both standalone and 2008 mode domain namespaces • dfsutil property abde enable \\<namespace_root> • Improved diagnostics • In-box – DFSUTIL.EXE, DFSDIAG.EXE • SCOM 2007 pack coming soon
Windows 2008 DFS Replication • Efficient, scalable and reliable Multi Master file replication • SYSVOL replication in Windows 2008 Domain Functional Level • Enabled by default for new Windows 2008 domains • Safe four step migration from FRS with dfsrmig.exe • Self-heals from USN journal wraps and database corruptions • USN Journal updated every 3 seconds or on change • Less checks on dirty shutdown • Reduced replication volume with RDC algorithm
Windows 2008 DFS Replication • Flexible scheduling and bandwidth throttling mechanisms • Takes advantage of SMB 2.0 • More shares, open files and connections, less chatter • Request pipelining for low latency connections • Large Request support • Network connection detection and optimal utilization • For Vista clients to Windows 2008 file access • For Windows 2008 DFS Replication without Vista Clients
DFS Management Tools • DFS Management snap-in (GUI)
DFS Management Tools • Reporting and diagnostics
DFS Management Tools • Command Line Tools • DFS Namespaces • Dfsutil.exe – manage DFSR roots, folders and targets • DfsDiag.exe – Diagnose configuration and integrity • DFS Replication • Dfsradmin.exe – Create/manage replication groups • Dfsrdiag.exe – Force/Stops replication, create reports
Distributed File System Liran Zamir Project ManagerMalam-Team liranz@malamteam.com