Windows 10: ReFS formatted VHDX become unreadable shown as RAW inside VM after mounting on host

Discus and support ReFS formatted VHDX become unreadable shown as RAW inside VM after mounting on host in Windows 10 Software and Apps to solve the problem; A virtual hard disk attached to a VM Windows Server 2022 and formatted with ReFS becomes unreadable inside this VM, after it is mounted to the HyperV... Discussion in 'Windows 10 Software and Apps' started by Rosch200, Jul 16, 2023.

  1. ROSCH200
    Rosch200 Win User

    ReFS formatted VHDX become unreadable shown as RAW inside VM after mounting on host


    A virtual hard disk attached to a VM Windows Server 2022 and formatted with ReFS becomes unreadable inside this VM, after it is mounted to the HyperV host Windows 11 and files have been written to.To re-create the issue:Test system: Windows 11 host with Hyper-V; Windows Server 2022 virtual machine1. Create a hard disk for a VM Windows Server 2022 in Hyper-V manager2. Initialize and format this HD with ReFS from inside the VM3. Copy some files to this virtual disk inside the VM optional4. Detach the VHDX from the VM in Hyper-V manager5. Mount the VHDX in the Hyper-V host Windows 116.

    :)
     
    Rosch200, Jul 16, 2023
    #1
  2. FRANK870
    Frank870 Win User

    Vhdx drives inside refs storage pool

    Trying to find out if this is good practice and if I will retain the benefits of having a mirrored refs storage space pool. I wish to have a mirrored pool using 4 physical drives formatted with refs. This will be over provisioned for future expansion.
    I want to have 2 vhdx drives inside of this pool. These will also be over provisioned. Will saving everything to my vhdx which is formatted ntfs be fine inside of my refs pool. I have tested this out with many file writes and benchmarks but its all short term
    and i cant simulate corrupted data on one drive.
     
    Frank870, Jul 16, 2023
    #2
  3. PLAYERDN
    playerdn Win User
    playerdn, Jul 16, 2023
    #3
  4. EASY RHINO
    Easy Rhino Win User

    ReFS formatted VHDX become unreadable shown as RAW inside VM after mounting on host

    ESXi 4.0 and Ubuntu LTS VM Raw Drive Mapping/Software Raid

    you will be able to map those drives to an ubuntu system. from there when you setup your VM software just reference that mount point. i suggest using command line to mount those drives, not the GUI. i am pretty sure there is open source software for software based raid 5 but i have never set that up before. look into cloud software which is what you want to do essentially.
     
    Easy Rhino, Jul 16, 2023
    #4
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ReFS formatted VHDX become unreadable shown as RAW inside VM after mounting on host

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