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Windows Server 2019 standard with REFS file system - Stand alone Hyper-V server

    Question

  • Hello,

    I am planning to deploy a stand alone Windows Server 2019 standard Hyper-V server with ReFS file system. This is primarily for windows server virtualization .The idea is to take benefit of new de-duplication feature of Refs.  I have following questions around this deployment

    1) Is ReFS supported on stand alone Hyper-V deployment? It will have only local disks.

    2) Is ReFS de-duplication supported on standard edition of windows server 2019?

    3) any known limitation?


    Karthik R

    Thursday, March 14, 2019 4:58 PM

All replies

  • Hi Karthik,

    1) Yes ReFS can be enabled on a standalone Hyper-V deployment, although I would make sure to check the hardware you're using is listed as certified on the following link: https://www.windowsservercatalog.com/

    2) Yes data deduplication is supported on Windows Server 2019 Standard.

    3) You can find all the information in the link below:

    Resilient File System (ReFS) overview
    https://docs.microsoft.com/en-us/windows-server/storage/refs/refs-overview#functionality

    Best regards,
    Leon


    Blog: https://thesystemcenterblog.com LinkedIn:

    Thursday, March 14, 2019 5:11 PM
  • Thanks Leon. I hope de-duplication used for production server work load.

    Karthik R

    Thursday, March 14, 2019 5:19 PM
  • Is ReFS supported on stand alone Hyper-V deployment? It will have only local disks.

    Yes, but on dedicated volume (not on system volume).

    Is ReFS de-duplication supported on standard edition of windows server 2019?

    De-duplication is supported on standard and datacenter edition, but as far as I know it's not yet officially supported or recommended to run Hyper-V VM's on deduplicated volume unless if used with S2D Cluster. 


    Microsoft Certified Professional

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    Thursday, March 14, 2019 5:21 PM
  • do i need to wait for MS official recommendation?

    Karthik R

    Thursday, March 14, 2019 7:37 PM
  • If you're building this for a production-critical environment, I suggest you wait until it becomes officially supported.

    If this is a test environment, you can try it out.


    Blog: https://thesystemcenterblog.com LinkedIn:

    Thursday, March 14, 2019 7:42 PM
  • Agree with Leon, you should wait with using deduplication for your production VM's. But you can go ahead and use ReFS for your VM's. 

    Microsoft Certified Professional

    [If a post helps to resolve your issue, please click the "Mark as Answer" of that post or click Answered "Vote as helpful" button of that post. By marking a post as Answered or Helpful, you help others find the answer faster. ]

    Thursday, March 14, 2019 8:38 PM
  • Hi,
    Just checking in to see if the information provided was helpful. Please let us know if you would like further assistance.

    Best Regards,

    Frank

    Please remember to mark the replies as an answers if they help.
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    Wednesday, March 20, 2019 3:14 AM
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