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Hyper-V Unable to access disk after resize operation

Jon P 1 Reputation point
2020-12-17T22:49:45.693+00:00

Hi all

I have a 2019 virtual server on a 2016 box. It has a non-boot VHD which was running out of space. I powered off the virtual machine and then ran through the expand wizard in Hyper-V Manager, for this VM. All seemed well until I powered on the virtual machine again and now the drive is inaccessible. It shows up in the virtual machines Disk Management console but I cannot assign a drive letter to it, nor do anything with the volumes both new and existing.

I have no idea what has happened to this as I have done this before with no issues.

Can anyone help me to regain access to this drive?49351-capture1.jpg

Windows Server 2019
Windows Server 2019
A Microsoft server operating system that supports enterprise-level management updated to data storage.
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Hyper-V
Hyper-V
A Windows technology providing a hypervisor-based virtualization solution enabling customers to consolidate workloads onto a single server.
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Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  1. Anonymous
    2020-12-17T23:20:14.64+00:00

    Doesn't look good. What right-click options are there?

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  2. Jon P 1 Reputation point
    2020-12-18T07:01:29.017+00:00

    The only right-click options available aren't that helpful. Just Delete volume and Help.

    49383-capture3.jpg

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  3. Xiaowei He 9,936 Reputation points
    2020-12-18T09:16:02.87+00:00

    Hi,

    Please use diskpart command in CMD to list volume, check if the drive letter of the partition still exists.

    Best Regards,
    Anne

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