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DFS Replication Doubt RRS feed

  • Question

  • Hi all,

    I am setting up DFS Replication between 2 critical folders in my company.

    But, what happen if the internet link goes down, for example, for 1 hour? Brazil changed 10 files inside the folder, and United States changed the exactly 10 files inside this folder.

    When the ISP comes back, what happen? Which change will be keeped in the file? Or some kind of sync issue will appear?

    Thanks,

    Wednesday, May 8, 2019 4:09 PM

Answers

  • Hi,

    If the connection goes down, DFS Replication will keep trying to replicate while the schedule is open.

    If 2 users simultaneously edit (or create) the same file, then DFS replicates the version of the file that was changed (created) last. An earlier version of the file is stored in DfsrPrivate\ConflictandDeleted directory on the server that resolves the DFS replication conflict. In this case, an entry about the conflict that has occurred appears in the ConflictandDeletedManifest.xml file.

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by Lavilian Li Thursday, May 9, 2019 6:39 AM
    • Marked as answer by Alex0809 Thursday, May 9, 2019 1:15 PM
    Wednesday, May 8, 2019 10:26 PM
  • Hi,

    Thank you for posting here.

    Agree with Leon that the last changed one will be the final version when there is modifying action at the same time. 

    Please have a look at the following official article which exemplifies the DFSR conflict alogorithms:

    Understanding dfsr conflict algorithms and doing something about conflicts

    https://blogs.technet.microsoft.com/askds/2010/01/05/understanding-dfsr-conflict-algorithms-and-doing-something-about-conflicts/

    Best regards,

    Lavilian


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Lavilian Li Thursday, May 9, 2019 6:39 AM
    • Marked as answer by Alex0809 Thursday, May 9, 2019 1:15 PM
    Thursday, May 9, 2019 6:39 AM

All replies

  • Hi,

    If the connection goes down, DFS Replication will keep trying to replicate while the schedule is open.

    If 2 users simultaneously edit (or create) the same file, then DFS replicates the version of the file that was changed (created) last. An earlier version of the file is stored in DfsrPrivate\ConflictandDeleted directory on the server that resolves the DFS replication conflict. In this case, an entry about the conflict that has occurred appears in the ConflictandDeletedManifest.xml file.

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    • Proposed as answer by Lavilian Li Thursday, May 9, 2019 6:39 AM
    • Marked as answer by Alex0809 Thursday, May 9, 2019 1:15 PM
    Wednesday, May 8, 2019 10:26 PM
  • Hi,

    Thank you for posting here.

    Agree with Leon that the last changed one will be the final version when there is modifying action at the same time. 

    Please have a look at the following official article which exemplifies the DFSR conflict alogorithms:

    Understanding dfsr conflict algorithms and doing something about conflicts

    https://blogs.technet.microsoft.com/askds/2010/01/05/understanding-dfsr-conflict-algorithms-and-doing-something-about-conflicts/

    Best regards,

    Lavilian


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    • Proposed as answer by Lavilian Li Thursday, May 9, 2019 6:39 AM
    • Marked as answer by Alex0809 Thursday, May 9, 2019 1:15 PM
    Thursday, May 9, 2019 6:39 AM
  • Thank you , Leon! 
    Thursday, May 9, 2019 1:15 PM
  • Thank you , Lavilian!
    Thursday, May 9, 2019 1:15 PM
  • Hi,

    It's my pleasure that my information was helpful to you.

    If there is anything else we can do for you, please feel free to post in the forum.

    Best Regards,

    Lavilian


    Please remember to mark the replies as answers if they help and unmark them if they provide no help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com.

    Friday, May 10, 2019 3:01 AM