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  • Blog Post: New DFS case studies

    With R2 launching, we have a number of new case studies on Microsoft.com that highlight how customers use DFS Namespaces and DFS Replication, as well as other technologies, in Windows Server 2003 R2. Check them out! --Jill
  • Blog Post: Explorer refresh issues for shared folders accessed using DFS paths

    Several newsgroup customers have recently reported Explorer refresh issues when connecting to shared folders using a DFS path. For example, if you connect to a shared folder directly (without using the namespace) and create a file or rename a file in a shared folder, the change is evident immediately...
  • Blog Post: Disabling and enabling DFS namespace referrals from the command-line

    At least once a month a customer asks for a command-line method to enable and disable referrals for a folder target (aka link target). Neither dfscmd.exe nor dfsutil.exe provides a way to do this. In response to the many requests we get for this functionality, we’ve posted some sample code that can be...
  • Blog Post: Does a DFS namespace have its own permissions?

    This is a common topic in the DFS_FRS newsgroup . Customers will describe how some users are unexpectedly denied access to targets in the namespace whereas other users can access the targets without problems. Customers also ask whether there are DFS permissions somewhere that must be adjusted. The answer...
  • Blog Post: DFS hotfix list updated

    We've updated our Current Hotfixes for DFS Replication and DFS Namespaces page with a new hotfix for DFSR and new column to describe where each hotfix is available. We do keep this page as up-to-date as possible so check back periodically for new updates. --Jill
  • Blog Post: Branch Office Infrastructure Solution (BOIS) updated for R2

    The updated version of the BOIS was released in early February. This new version includes the new DFS-related features in R2 (DFS Replication and DFS Namespaces). --Jill
  • Blog Post: Creating DFS namespaces more than two levels deep

    A common question among customers using the Distributed File System snap-in in Windows Server 2003 is how to create a namespace more than two levels deep. For example, a customer in the DFS_FRS newsgroup was frustrated because he knew how to create a root, and he knew how to create a link named Homedirectories...
  • Blog Post: Storage Tips: How to create namespace links in Uppercase

    When you create namespace folders (links) using DFSUtil in Windows Server 2008, the namespaces links are lowercase. This is a known issue, and as a work around, you can use dfscmd /map to create Uppercase links in DFS namespace. Ganesh Prasad
  • Blog Post: New in Windows Server 2008: Breaking the 5K Folder “Barrier” in Domain-Based Namespaces

    The DFS Namespaces team is excited to announce upcoming support for domain-based namespaces that exceed the previous size recommendation of 5,000 folders with targets in a namespace. Starting in Windows Server 2008, you will be able to use the DFS Management snap-in to create a new domain-based namespace...
  • Blog Post: Channel 9 Video on DFS in R2

    Our very own Shobana Balakrishnan, a program manager on our Windows Longhorn Server team, takes you through the server roadmap and demonstrates Windows Server 2003 R2. Think you know everything about Windows Server? You might be surprised by the innovations this team has shipped and is planning on shipping...
  • Blog Post: Windows Server DFS-Namespaces Performance and Scalability

    The DFS-N test team has completed some extensive Performance and Scalability testing and we wanted to share some of the results. To start, here is a comparison of the performance of adding links to a standalone namespace. It includes data for Windows Server 2003, Windows Server 2008 and Windows Server...
  • Blog Post: How referral timeouts work in DFS Namespaces

    Hi, this is Sanjoy Chatterjee again. In this post I will cover how referral timeout works in DFS Namespaces. When clients receive referrals from the DFS server, they cache these referrals in what was called the PKT Cache. The current terminology for that cache is Referral Cache and that is what we...
  • Blog Post: Storage Tips: You can run DFSUtil from Windows Vista

    DFS Namespaces or DFSN management command line tools are available on Windows Server 2008 and also on Windows Vista SP1 as part of the Microsoft Remote Server Administration Tools (RSAT). The three available tools are Dfsutil.exe, Dfscmd.exe and Dfsdiag.exe. To install DFSUtil, DFSDiag and DFScmd on...
  • Blog Post: Understanding Windows Server 2008 DFS-N by analyzing network traces

    Jose Barreto has a new blog post covering details of the behavior of Windows Server 2008 DFS-N (Distributed File System - Namespaces) clients by looking at network traces. His main goal is to show the interaction between a DFS-N client, a domain controller, a namespace server and a file server. These...
  • Blog Post: DFS Namespace Scalability Considerations

    In this blog post, let me touch on a topic that I frequently get questions on from customers. Most namespace scalability questions are along one of the following lines: I want to put x number of DFS folders in one DFS namespace, does this work? Does this matter if I put these x DFS folders into...
  • Blog Post: Three ways to design your DFS Namespaces

    Jose Barreto has a new blog post to help you understand how to design your DFS Namespaces. He covers three options to create a namespace that points a few folders in three different file servers: Simple mapping of shares Flattening out the tree in the namespace Reversing the original tree...
  • Blog Post: Upcoming webcast and chat for administering branch office technologies in R2

    Hello everyone, we've got two events this week for the R2 branch office technologies--a webcast on Wednesday and a follow-up chat on Friday. These will cover DFS Replication and DFS Namespaces in R2. TechNet Webcast: Administering and Maintaining the Branch Office Technologies in Windows Server 2003...
  • Blog Post: Five ways to check your DFS-Namespaces (DFS-N) configuration with the DFSDIAG.EXE tool

    Jose Barreto has a new blog post to help you understand how to use the DFSDIAG.EXE tool to check your DFS-Namespaces (DFS-N) configuration. DFSDIAG, which was introduced in Windows Server 2008 and improved in Windows Server 2008 R2, has five types of checks: Checking domain controller configuration...
  • Blog Post: Deep Dive into Windows Server 2008 File Services – Recording

    For those who missed Drew McDaniel’s Live webcast “Deep Dive into Windows Server 2008 File Services”, you now can now view the recording: https://www.livemeeting.com/cc/mseventsbmo/view?id=1032381104&role=attend&pw=3B160CB1 Enjoy! -- Malu Menezes
  • Blog Post: Storage Tips: Read/write failures even with DFS Failover?

    If you opened a file, and in the meanwhile the connection to the server was lost, and you don’t have CSC enabled, any further attempt to read/write will fail. DFS Failover is only performed when the client opens a file or folder. It does not apply for files or folders that are already open. In...
  • Blog Post: Using DFS Namespaces and Offline Files

    Customers often ask about how DFS Namespaces interacts with Offline Files. I asked our new DFS Namespaces PM, Sanjoy Chatterjee, to introduce himself and explain the interaction. I am Sanjoy Chatterjee, the new PM for the DFS group. My goal for posting on this blog is to clear up common customer questions...
  • Blog Post: DFSUtil in Windows Server 2003 VS DFSUtil in Windows Server 2008

    1. New Command Line Interface (CLI) DFSUtil.exe in Windows Server 2008 comes with a new CLI, which is based on Keywords, Required Parameters and Optional parameters instead of Switches and Arguments. With this change, we intend to make the usage of the commands clearer and easier. Navigation through...
  • Blog Post: Clarification about how client failback works in DFS Namespaces

    A blog reader recently contacted us with the following question, “When I was testing DFS failback, the client reconnected to the local site server but the files were still being served at the failover server. Why aren’t the files served from the local server after the client fails back?” Sanjoy Chatterjee...
  • Blog Post: Configuring DFS Namespaces from XP SP2 Clients

    Windows Server 2003 R2 includes an Administration Tools Pack for running some of the R2 snap-ins on XP SP2 computers. A newsgroup customer recently tried this but found that some of the DFS Namespaces options are greyed out. As it turns out, you also need to install a hotfix to add the new DFS Namespaces...
  • Blog Post: TechNet Webcast: Configuring Failback and Target Priority for DFS Namespaces (Level 200)

    Our very own Sanjoy Chatterjee will be hosting a webcast on new DFS Namespaces features in June. Details are below--hope you can join us! Summary This webcast introduces two new features of distributed file system (DFS) Namespaces: target priority and client failback. These features are available...