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REFS volume formatted by Windows Server TP 4 not recognized RRS feed

  • Question

  • REFS volume formatted by Windows Server Technical Preview 4 was not recognized when mounted in Windows server 2012 R2 environment where it showed up as being RAW though data was intact. Why did this happen? Will REFS volumes formatted by the final release of Windows Server 2016 be recognizable by Windows Server 2012 R2 and Windows Server 2012?

    Vladimir Shipitsyn

    Saturday, January 30, 2016 11:27 PM

Answers

  • There has been significant innovation in the ReFS file system in Windows Server 2016, and as a result of those changes it is not downlevel compatible.  An ReFS volume formatted on a Win2016 server, cannot be read by a Win2012 R2 system.

    Thanks!
    Elden

    Sunday, January 31, 2016 12:48 AM
  • Hi Vladimir Shipitsyn,

    ReFS provides the file system in which the Hyper-V VM files are stored. ReFS is a premier file system for virtualized deployments and includes optimizations for Storage Spaces such as error detection and automatic correction. In addition, ReFS provides accelerations for VHD(X) operations such as fixed VHD(X) creation, dynamic VHD(X) growth, and VHD(X) merge.

    https://technet.microsoft.com/en-us/library/mt126109.aspx?f=255&MSPPError=-2147217396

    And you could also refer to the article below.

    The best new features in Windows Server 2016 (so far)http://www.infoworld.com/article/2998942/windows-server/the-best-new-features-in-windows-server-2016-so-far.html

    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,

    Mary Dong


    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.

    • Marked as answer by Mary Dong Friday, February 12, 2016 6:06 AM
    Monday, February 1, 2016 7:28 AM

All replies

  • There has been significant innovation in the ReFS file system in Windows Server 2016, and as a result of those changes it is not downlevel compatible.  An ReFS volume formatted on a Win2016 server, cannot be read by a Win2012 R2 system.

    Thanks!
    Elden

    Sunday, January 31, 2016 12:48 AM
  • Elden, where could I get information on what has changed in the REFS file system in Windows Server 2016?


    Vladimir Shipitsyn

    Monday, February 1, 2016 1:17 AM
  • Hi Vladimir Shipitsyn,

    ReFS provides the file system in which the Hyper-V VM files are stored. ReFS is a premier file system for virtualized deployments and includes optimizations for Storage Spaces such as error detection and automatic correction. In addition, ReFS provides accelerations for VHD(X) operations such as fixed VHD(X) creation, dynamic VHD(X) growth, and VHD(X) merge.

    https://technet.microsoft.com/en-us/library/mt126109.aspx?f=255&MSPPError=-2147217396

    And you could also refer to the article below.

    The best new features in Windows Server 2016 (so far)http://www.infoworld.com/article/2998942/windows-server/the-best-new-features-in-windows-server-2016-so-far.html

    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,

    Mary Dong


    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.

    • Marked as answer by Mary Dong Friday, February 12, 2016 6:06 AM
    Monday, February 1, 2016 7:28 AM