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  • Blog Post: The End is Nigh (for FRS)

    Hi folks, Ned here again. At TechEd , I officially announced the end of the File Replication Service . For those that missed the event, I repeat: We are removing FRS from Windows Server Today I’ll talk about what this means and how to get ready. We want this to be as easy as possible and I welcome any...
  • Blog Post: The Case of the Mysterious Preseeding Conflicts

    Hi folks, Ned Pyle here again. Back at AskDS , I used to write frequently about DFSR behavior and troubleshooting . As DFS Replication has matured and documentation grew, these articles dwindled. Recently though, one of the DFSR developers and I managed to find something undocumented: A DFSR server upgrade...
  • 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: DFS Replication in Windows Server 2012 R2: Revenge of the Sync

    This post is a part of the nine-part “ What’s New in Windows Server & System Center 2012 R2 ” series that is featured on Brad Anderson’s In the Cloud blog. Today’s blog post covers DFSR and how it applies to the larger topic of “Transform the Datacenter.”...
  • Blog Post: Microsoft IT Showcase Podcast: How Microsoft IT Architects and Configures DFS Replication

    Dustin Fraser, a senior Systems Engineer within Microsoft IT, has created an audio podcast discussion of DFS Replication in R2. Enjoy! --Jill
  • Blog Post: Staging Changes in Windows Server 2008

    An ‘under the hood’ change on Windows Server 2008 A previous blog post mentioned some of the more end-user visible new features in Windows Server 2008. There is another less visible design enhancement on Windows Server 2008. Let us explore this change and find out how it can be beneficial to Server...
  • Blog Post: Bandwidth throttling and backlogs in DFS Replication

    A customer recently contacted us about a consistent backlog they were experiencing using DFS Replication. Even on fast links, changes to small files (a few KB) would take 4 to 5 hours to replicate. The customer described the environment as follows: "We have one hub site server and 25 branch site partners...
  • Blog Post: Storage Tip: How to check if the initial replication was completed successfully

    There are a couple of ways to check the progress of initial replication. You can either use the Event Viewer snap-in or WMI to check whether your replicated folders have finished initial replication. Event Viewer: A separate event (4104) is thrown for each replicated folder on each downstream partner...
  • Blog Post: Sample script for automating DFS Replication health reports

    ####### ## REM This script needs to run as a daily scheduled task by someone who has ## REM local administrator rights for all machines in reported RG. This script ## REM will generate a health report for all members of the replication group, ## REM with backlog based on a specified reference member...
  • Blog Post: Deploying DFS Replication on a Windows Failover Cluster – Part I

    On Windows Server 2008 R2, a Windows Failover cluster can be configured to be a member of a DFSR replication group. This feature can be used to configure highly available replication services. In this three part blog series, let us examine how to configure a Windows Failover cluster as a DFS Replication...
  • Blog Post: A script to restore data from the DFSR ConflictAndDeleted or Preexisting folders for disaster recovery purposes

    The DFS Replication (DFSR) service stores files that encountered replication conflicts and pre-existing files that were removed during initial synchronization in the 'ConflictAndDeleted' and 'PreExisting' folders respectively. Our resident DFSR guru, Ned Pyle has just submitted a new and updated script...
  • Blog Post: Can I disable the use of encrypted RPC by DFSR?

    We have been asked by a couple of customers whether it is possible to turn off the use of encrypted RPC by the DFS Replication service. Some of these customers were evaluating WAN acceleration solutions which do not work well with encrypted RPC traffic. Let us try to understand why the DFS Replication...
  • Blog Post: Clearing up a common misconception about hub and spoke topologies in DFS Replication

    When you set up a replication group in Windows Server 2003 R2, you are given the choice of several topologies, including hub and spoke. A common misconception about this topology is that the hub is a “master” and changes made on spokes will not be replicated back to the hub. Here’s an example of the...
  • Blog Post: DFS Replication efficiency for WIM files

    A customer asked us how efficiently DFS Replication replicates changes made to Microsoft Windows Imaging Format (WIM) image files. (WIM images are created by ImageX, the disk imaging tool in Windows Vista.) It just so happens we tested this recently with two consecutive Windows Vista builds, and the...
  • Blog Post: Using DFS Replication Clone Feature to prepare 100TB of data in 3 days (A Test Perspective)

    I’m Tsan Zheng, a Senior Test Lead on the DFS team. If you’ve used DFSR (DFS Replication), you’re probably aware that the largest amount of data that we had tested replication with until recently was 10 TB. A few years ago, that was a lot of data, but now, not so much. In this post...
  • Blog Post: Staging Folder Guidelines for DFS Replication

    Hi, this is Shobana Balakrishnan here to talk about staging folders in DFS Replication. Staging folders are used to (a) isolate the files from the changes on the file system, and (b) amortize the cost of compression and computing RDC hashes across multiple partners. As the heuristic is set, staging is...
  • Blog Post: Determining which member was set as the primary member for DFS Replication

    When you configure DFS Replication, you select the primary member that has the most up-to-date files that you want replicated to other members. The primary member's files will always win the conflict resolution that occurs when the receiving members have files that are older or newer compared to the...
  • Blog Post: DFSR Reparse Point Support (or: Avoiding Schrödinger's File)

    Hi folks, Ned Pyle here again. We are occasionally asked which reparse points DFS Replication can handle, and if we can add more. Today I explain DFSR behaviors and why simply adding reparse point support isn’t cut and dry. Background A reparse point is user-defined data understood by an application...
  • Blog Post: Windows SDK and MSDN doc updates for Windows 7 and Windows Server 2008 R2 Beta

    The Windows SDK for Windows 7 and Windows Server 2008 R2 Beta, including updated documentation, is now available in the Windows Download Center at http://www.microsoft.com/downloads/details.aspx?FamilyID=a91dc12a-fc94-4027-b67e-46bab7c5226c . For even more up-to-date documentation, see the MSDN Library...
  • Blog Post: Sample DFS Replication scripts

    [Updated 11/27/06 to fix broken links] If you'd like to use the DFSR WMI provider to configure and monitor DFS Replication, take a look at the sample scripts up on the Windows SDK website . The DFSR WMI classes are documented here . --Jill
  • Blog Post: Customizing file compression in DFSR on Windows Server 2008

    Hello, Everyone Ned Pyle just wrote a very interesting post on Customizing file compression in DFSR on Windows Server 2008. Here’s a quick excerpt: When you added a file to a DFSR content set and it was at least 64KB in size, the DFSR service placed a copy of the file in the Staging folder....
  • Blog Post: Understanding DFSR Dirty (Unexpected) Shutdown Recovery

    Let me touch on an interesting topic in this blog post: “dirty shutdown” recovery of DFS Replication (DFSR). A TechNet blog post reviewing “What is new in Windows Server 2008” includes a good description of DFS Replication dirty shutdown recovery process. Related system event...
  • Blog Post: Understanding DFS Replication "limits"

    [Updated on 11/27/06 to clarify areas where customers commonly have questions] The most frequent DFS Replication questions are about replication limits. The answer is, as you might guess, not as simple as some arbitrary hard-coded limit. And just so we’re on the same page, I’m talking about the new...
  • Blog Post: SYSVOL Migration Series: Part 4 – Migrating to the ‘REDIRECTED’ state

    The previous article in this series explained how to migrate replication of the SYSVOL share to the ‘PREPARED’ state. In this article, we examine how to migrate all domain controllers to the ‘REDIRECTED’ state. Before we begin … Before migrating to the ‘REDIRECTED’ state, a couple of precautions...
  • Blog Post: New five-part blog series on DFS Replication

    Ned Pyle, a Senior Escalation Support Engineer with the Directory Services team at Microsoft, has just started a new blog series focusing on DFS Replication. Here’s how he introduces it: Hello folks, Ned here again to kick off a new five-part series on DFSR. With the release of Windows...