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Questions tagged [vhdx]

VHDX is the virtual hard disk format introduced with Hyper-V 2012. It is designed to enhance performance and data protections over the earlier VHD format.

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Is it possible for multiple users to mount a virtual hard drive?

We have a Windows Server 2012 R2 Essentials server and several Windows 10 Pro PCs. We have a drive on the server with all our company documents on which is shared over the network and mapped to all the PCs. Some of these files (all in one folder)…
Ben
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Poor performance of a VHDX on RAID5

I have a high-end desktop PC. MB: Intel DX79TO CPU: Intel i7-3820 @ 3.6GHz RAM: Quad Channel Kingston Hyper-X DDR3 16GB @ 2400 MHz SSD: Kingston Hiper-X 120GB (Host OS resides here) RAID5: 4 x 1TB - Windows Software RAID Host OS: Windows Server…
Bozhidar Stoyneff
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Discrepancy between VHDX size and what the OS reports

I have an ubuntu 16.04 VM on a Server 2012 R2 Hyper-V server. The VHDX (dynamically expanding VHD) size is 1.8TB but the VM inside reports that only 3% of the disk is used. I don't understand why HV thinks that the disk is full. What can the be…
user2629636
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User profiles as VHDX files - paging operation errors

Hello we have this terminal server on w2k12. Users login and have their profile mounted as virtual disk from VHDX file with filename like this C:\Users\Public\Documents\RDS_UserProfileDisks\UVHD-S-1-5-21-3626241538-2602771230-459845379-52949.vhdx I…
Vitas
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Server 2012 R2 - Sharing 'cluster shared volume' .VHDX hard drives between two VMs, are they supposed to not live update?

I have a .VHDX volume that's a cluster shared volume in a Server 2012 R2 failover cluster. I'm able to share the hard drive between two VMs. If I create a folder on VM2, it doesn't show in VM1 in the hard drive unless I reboot that machine or go…
Christopher Bruce
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Refreshing VM with limited Disk SPace

I have a Hyper-V machine that crashed. I am trying to refresh it but the disk is too small when I load the disk.ISO in. I tried to expand it but I still get the screen. Is there a way to add the added disk space to the so that it sees the extra disk…
Jason
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Preventing a read-write first automount after adding a VHDX onto a CentOS7 HyperV VM

I have a VHDX file (representing a non-boot ext4 fs) that I need to run some forensics on. I have a working CentOS7 HyperV VM on a Win2012R2 host. I want to attach the VHDX to the CentOS7 VM, which I know how to do. What I don't know how to do…
Kev
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Removed a VHDX disk from VM and after readding it my data has reset to 4+ months ago?

I have a HyperV server with a VM for a windows file share. I have a VHDX attached to the VM that has all the data for the file share. I needed to temporarily remove the VHDX disk, and upon clicking "Remove" it prompted me to create a checkpoint to…
Joe Jankowiak
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Deduplication inside VHDX

I want to use deduplication on files coming from a vhdx, but it doesn't seem to work as it doesn't optimize space. I tested it on another 'normal' file system (containing xlsx, pst, doc files, etc.) and it works fine. I'm wondering: could it be that…
GoldenH4ck
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How to (properly) trim Hyper-V Linux VMs on Server 2022?

I have tried a truckload of guides, but neither seems to work properly. My issue is the following: I have a host with 1TB SSD drives The VMs barely use ~50G/150G of space (when checked with df -h), yet, they consume 170 and 260gb of space…
Apache
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After Syspreping a VHDX on a VM, mounting it means restoring to previous state

I create a VM with a VHDX. I write some txt files in C:\LocalFiles. If I turn off the VM using Stop-VM and restart it, the files are still there. The problem arises when I run C:\Windows\System32\sysprep\SysPrep.exe /generalize /oobe /shutdown The…
noobie
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Add Partition Table to existing vhdx partition image

I have images of single paritions (not full disks) in vhdx format. I want to create VMs with Hyper-V with them. Since the images are only partitions the machines do not start. How can I add the disk header or merge multiple vhdx partitions to a…
Fritz
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Mount attached drive in virtual machine using Hyper-V from the command line

I'm trying to automate some of my processes when adding a new hyper-v vm. One of the steps I have to do manually is add the newly created and attached vhdx to the new virtual machine. It shows up like this: Is there a way to automate adding this…
ErocM
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Failed to map guest I/O buffer for write access with status 0xC0000044 Hyper-V-StorageVSP Event ID 8

Full Error information: Error 8/9/2021 10:35:11 AM Hyper-V-StorageVSP 8 None Failed to map guest I/O buffer for write access with status 0xC0000044. Device name = d:\vms\servername\virtual hard disks\servername.vhdx This error is switching…
Eric Nord
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Completely remove virtual disks with diskpart (list volume still shows them)

I'm creating a lot of differencing disks for my project and deleting them after some time. I use "detach vdisk" command, they disappear from disk management but they are not completely removed... When i use "list vdisk" command there is a huge list…
F Andrei
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