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Active directory replication

    Question

  • replication metadata High water mark vector and upto dateness vector, what is the difference ?
    Monday, February 6, 2017 12:30 PM

Answers

  • TL;DR: 
    • Up-to-dateness vector. The current status of the latest originating updates to occur on all domain controllers that store a replica of a specific directory partition.

    • High-watermark (direct up-to-dateness vector). The latest update (originating or replicated) to a specific directory partition that has been received by a destination from a specific source replication partner during the current replication cycle.

    If you prefere the long story: https://technet.microsoft.com/en-us/library/cc772726%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396 

    Regards

    • Marked as answer by Rana.b Wednesday, February 8, 2017 3:03 PM
    Monday, February 6, 2017 1:06 PM
  • Thank-you for help.

    scenario or any simple easy to understand example. 


    http://strongline.blogspot.com.tr/2005/05/high-watermark-vector-and-up-to.html

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by Rana.b Wednesday, February 8, 2017 3:03 PM
    Monday, February 6, 2017 5:18 PM
  • Hi,
    Referring to the following blog: https://blogs.msmvps.com/acefekay/tag/high-water-mark/
    Up-To-Dateness vector
     This is a value that the destination domain controller maintains for tracking the originating updates that are received from all source domain controllers.
     This value helps the source DC filter irrelevant attributes (and entire objects if all attributes are filtered) on the basis of the relationships between all sources of originating updates and a single destination.
     To see the Up-to-datenes vector value, run the repadmin /showvector command.
    High-watermark
     This is a value that the destination domain controller maintains to keep track of the most recent change that it has received from a specific source domain controller for an object in a specific directory partition.
     This value prevents irrelevant objects from being considered by the source domain controller with respect to a single destination.
     To see the value of the High-watermark, run repadmin /showreps /verbose and look for each line that starts “USNs:”. The high-watermark USN is the number that is followed by “/OU”.”
    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
    Best regards,
    Wendy

    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com


    Tuesday, February 7, 2017 7:19 AM
    Moderator

All replies

  • TL;DR: 
    • Up-to-dateness vector. The current status of the latest originating updates to occur on all domain controllers that store a replica of a specific directory partition.

    • High-watermark (direct up-to-dateness vector). The latest update (originating or replicated) to a specific directory partition that has been received by a destination from a specific source replication partner during the current replication cycle.

    If you prefere the long story: https://technet.microsoft.com/en-us/library/cc772726%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396 

    Regards

    • Marked as answer by Rana.b Wednesday, February 8, 2017 3:03 PM
    Monday, February 6, 2017 1:06 PM
  • Thank-you for help.

    scenario or any simple easy to understand example. 

    Monday, February 6, 2017 1:10 PM
  • Thank-you for help.

    scenario or any simple easy to understand example. 


    http://strongline.blogspot.com.tr/2005/05/high-watermark-vector-and-up-to.html

    This posting is provided AS IS with no warranties or guarantees,and confers no rights. Best regards Burak Uğur

    • Marked as answer by Rana.b Wednesday, February 8, 2017 3:03 PM
    Monday, February 6, 2017 5:18 PM
  • Hi,
    Referring to the following blog: https://blogs.msmvps.com/acefekay/tag/high-water-mark/
    Up-To-Dateness vector
     This is a value that the destination domain controller maintains for tracking the originating updates that are received from all source domain controllers.
     This value helps the source DC filter irrelevant attributes (and entire objects if all attributes are filtered) on the basis of the relationships between all sources of originating updates and a single destination.
     To see the Up-to-datenes vector value, run the repadmin /showvector command.
    High-watermark
     This is a value that the destination domain controller maintains to keep track of the most recent change that it has received from a specific source domain controller for an object in a specific directory partition.
     This value prevents irrelevant objects from being considered by the source domain controller with respect to a single destination.
     To see the value of the High-watermark, run repadmin /showreps /verbose and look for each line that starts “USNs:”. The high-watermark USN is the number that is followed by “/OU”.”
    Please Note: Since the web site is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information.
    Best regards,
    Wendy

    Please remember to mark the replies as answers if they help.
    If you have feedback for TechNet Subscriber Support, contact tnmff@microsoft.com


    Tuesday, February 7, 2017 7:19 AM
    Moderator