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MikeLabatt's avatar
MikeLabatt
Brass Contributor
Jan 12, 2022
Solved

ReFS volume appears RAW (version doesn't match expected value) after Windows Update

After Windows Update last night, Windows Server 2019 wouldn't mount a storage space volume as ReFS (it appears as RAW). The error in the ReFS event log is "ReFS failed to mount the volume. Version 1....
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  • MikeLabatt's avatar
    MikeLabatt
    Jan 13, 2022

    I solved this by uninstalling KB5009557. The ReFS volume came back working as it should, instead of appearing as RAW.

     

    Update: since even the February 2022 Windows Update bricks ReFS in the same way, and hints from Microsoft are that ReFS 1.x is no longer supported, we copied everything to new disks, upgrading ReFS from 1.2 to 3.4 in the process. Such a (manual) ReFS upgrade should be the solution that everyone needs, allowing to re-enable Windows Update.

Hunduma_Merzo's avatar
Hunduma_Merzo
Copper Contributor
Apr 28, 2023

Hi

We Got on one server ReFS volume appears RAW  for critical Mission Data. There is no Update program to uninstall the update as shown below screenshot. would mind helping Us how to solve this issue?

 

 

stephc_msft's avatar
stephc_msft
Icon for Microsoft rankMicrosoft
Apr 28, 2023

Hunduma_Merzo 
so did you do anything to that system or disk before it became RAW ?
eg temporarily attach the disk to a server running a later OS version?

Does the ReFS event log   (Applications and services, Microsoft, Windows, ReFS) say anything?

4.4TB physical disk on a physical server
or is it a VM ?
What OS  version ?

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