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Questions tagged [hyper-v]

Microsoft Hyper-V is a hypervisor-based virtualization system for x86-64 systems. Hyper-V exists in two variants: as a stand-alone product called Microsoft Hyper-V Server, and as an installable role in Windows Server 2008 and later. Both variants are able to run in Windows Server Core versions.

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When you Checkpoint a VM, at what point is the state saved?

In Hyper-V, if you create a Standard Checkpoint on a VM, is the disk and memory state frozen when you start creating the checkpoint, or when the checkpoint has finished saving, or at some other point ...
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How to understand hyper-v "CPU Wait time per dispatch"

I'm aware of the other question on this topic, but it doesn't quite scratch my itch. Here's my - probably quite simplistic - model for how CPU work gets done. On the host we have a pool of logical ...
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Poor Cluster Shared Volume performance when node is not CSV owner

We have a 5 node Windows Server 2016 Failover Cluster setup using an HPE Nimble as shared storage. We're using the cluster for Hyper-V. All virtual machine VHDXs are stored on the cluster shared ...
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Co-locate VM on a single/set of core(s)

I'm trying to understand certain impacts of virtualisation on performance by running benchmarks on VMs. I'm considering ESXi and Hyper-V as the hypervisors. I wanted to know if I can pin a VM to a ...
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Change boot entry IDs in Hyper-V firmware

Because of Hyper-V configuration (V5 and 8) incompatibility. I'm on a quest for alternative method to get my VM booting properly. For now I would like to know if it is possible to change the boot ...
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Temporarily disable Hyper-V networking components on host

I have a Windows 10 PC running Hyper-V. Everything works well. I've learned that when Hyper-V installs, it sort of "takes over" the networking in that PC. Everything starts going through the ...
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Merging avhdx checkpoints into vhdx under Qemu/KVM

I recently switched over from Hyper-V to Qemu (KVM), and in migrating my VM’s unpleasantly discovered that I had neglected to use the Hyper-V tools to merge one of my Ubuntu VM’s disks containing ...
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Licensing Windows 10 Pro hosted on Hyper-V [duplicate]

I am trying to find some concrete information about Windows 10 Pro licensing on Hyper-V. I have a document called 'Licensing Windows desktop operating system for use with virtual machines' dated April ...
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Hyper-v 2012R2 host looses connection to cluster storage

We have a concerning issue with one of our 4 Hyper-V 2012R2 hosts. It looses connection to the clustered storage now and then and any VMs on that host naturally stops when this happens. After a ...
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How to correctly sync time of an Hyper-V host which is member of a domain?

There are many posts concerning issues when dealing with time synchronisation over a domain which holds virtualised PDC Emulators (see this article). As a result our PDC Emulator time (and domain time)...
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VM running under Hyper-V thinks it connects to a new network after every host reboot

I have turned a physical machine running Windows 10 21H1 into a virtual machine that I run under Hyper-V on a new machine running Windows 10 21H2. Networking-wise, the VM is configured with two ...
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Slow traffic(high ping) of MikroTik on Hyper-V

I am new to networking. I installed MikroTik with one Windows server and two Windows 10 clients within Hyper-V. It is routing and I can access the internet from one of the Windows VMs but it is super ...
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Hyper-V virtual machine management service stuck at ‘Stopping’

After installing the KB5009624 monthly rollup from Microsoft, we are experiencing a problem wherein suddenly both the Hyper V instance and the Host Machine become unreachable using the virtual switch. ...
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XenServer Dynamic RAM on Task Manager

I'm new to XenServer, I use XenServer instead Hyper-V because Hyper-v Getting some issues with many VMs on the same host XenServer is a good place for Cloud services, but I got a small issue I have ...
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Why does vhdx file take more space than actual data in ext4 partition

I know Hyper-V is not able to handle ext4 file system, thus the compact will not compact correctly. But I found some articles on the web suggesting zeroing unused space. df -h actually returns : Sys. ...
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Mixing server models in Hyper-V Failover Cluster

Does anyone have experience with a heterogeneous blend of servers in a Hyper-V failover cluster? We have a cluster with blended generations of Proliants (DL360 G9s and DL360 G10s), and I'm ...
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Virtualizing Solaris 2.5.1 (1995)

Posting here instead of unix exchange because although unix is the suject, this should apply to other non-nix OSs. Our development team has been asked to automate some tasks that happen to interact ...
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ERROR /init: /init: 1 cannot open /dev/root/: No such device or address after P2V

I have a problem with converting a Physical Machine to a Virtual Machine. I'm using as VM host Windows Server 2012 R2 with Hyper V. Unfortunately I'm rather the Windows Guy and can't find a solution ...
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Hyper-V won't boot customized Ubuntu Server ISO

I'm trying to create a customized Ubuntu Server ISO (using the instructions here) for use in Hyper-V VMs. I want to modify boot/grub/grub.cfg to add autoinstall to the kernel command line parameters ...
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Improve Hyper-V Storage IOPS

i have been working for about a week straight trying to get hyper-v servers to provide the same storage performance as the host they are on. the random IOPS are a mere fraction of a percent of what ...
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Kernel Panic in Debian after converting disk from Hyper-V to VirtualBox

I have a problem after moving the VM from HyperV to VirtualBox running Debian 10. After booting, I have ShellUEFI and then I run grub64 and then the panic kernel appears. Interestingly, I don't have ...
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Cloaning a VM in Hyper-V - System Out-of-Box Experience (OOBE)

I need to clone a VM on Hyper-V. I was going to just Export and Import then change the IP address/name of the cloned VM. However, with non server VM's people recommend running the OOBE to assign a new ...
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Setting up virtual machine and applications

I 've got following collection of features installed in virtual machines Server name Feature Installed E-Dom Active Directory, NFS File Share E-Coll Exchange Server, Sharepoint, PBX Server E-Sec ...
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Autodiscovery in prometheus

This might be a newbie project so please be patient till the end of the post. I'm developing a demo data centre and have commissioned a couple of machines to act as nodes. My DC is defined as follows: ...
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How to get a Hyper-V VM out of PausedCritical state?

A program running in a VM filled so much of the virtual disk that it expanded to fill the host's drive. Now GET-VM shows the VM is in PausedCritical state. I read that I need to compact the virtual ...
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Windows 10 configured with RAW discs to increase Hyper V performance takes minutes to boot

Long story short: If I configure discs on the machine as a RAW partition so Hyper V works directly with them to increase performance then the machine takes minutes to boot with the blue circle going ...
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Hyper-V default switch to private profile

The organization I work for has a group policy that doesn't allow me to add firewall rules on the public profile. As a result, it drops DHCP requests from VMs as the Hyper-V default network seems to ...
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DFS Replication slow to a single server

This is a proper head-scratcher... A customer has a domain with eight DCs. Two (including the PDC) are Hyper-V VMs in our datacentre, four are vSphere VMs at national site offices (not RODCs) and the ...
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Hyper-V stopped working after January 2022's Patch Tuesday (2022-01-11): The operating systems boot loader failed with error 0xC00000BB

I only just noticed this now, but apparently since 2022-01-11 ("Patch Tuesday" in January 2022) my home network's dev-server's Hyper-V hypervisor has been unable to start. The box is a 6 ...
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Setting up slurm on a cluster

My IT admin has setup a cluster with 3 nodes, which is administered via Windows server. VMs are hosted via Hyper-V, including an Ubuntu VM to which a substantial portion of the cluster's resources ...
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Hyper-V, BitLocker usage both on the virtualized system and the drive of the host system

Using Hyper-V on a Windows 10 Pro computer, all Hyper-V VM related data is stored on a non-system secondary SSD: D:\. I know that you can use BitLocker in the VMs themselves, by enabling TPM support ...
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PFSense on Hyper-V - Can't Access VMs from hypervisor

I'm hoping someone can help clarify what i'm doing, perhaps i'm missing something obvious, but I'm trying to setup PFSense as a VM on my workstation. I've ceated two virtual switches, one external (...
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How to fix, ubuntu not getting ip address on hyper-v?

I am using hyper-v as a hypervisor and installed ubuntu 21 on it. There, whenever I start the VM, the eth0 (only one network interface connected,Default Switch of Hyper-v) is not getting IP and ...
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Hyper-V (2016) has VM's running I cannot see - how to discover if more?

We did something silly, and "the client insisted" and "we got bad advice" is no excuse, but I could use help cleaning up. Background: We added a new 2019 Hyper-V server to a group ...
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Linux guest on Hyper-V host, realtime clock, UTC or local - sync with AD DC

I'm installing a Debian 11 Linux guest on a Hyper-V cluster. Hosts' realtime clocks are set to local time, as is the norm for Windows Servers; unlike the preference of Unix-like OSes. Should I execute ...
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Hyper-V & Windows Server 2022 is creating a new network on each boot

I have two virtual machines on my host (Windows Server 2022 and Windows 10) each time I reboot WS2022 it auto detects a new network on start however Windows 10 doesn't. So far we're up to network 20, ...
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How to bind an external IP address to a new NetNat network?

On my Hyper-V 2019 server, which is joined to the domain that's hosted on one of its VMs, I'm running on the 192.168.0.0/24 subnet. I'm setting up a demo of a new DC for a customer, so I need it to ...
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DELL VRTX - M620 Blade - Both NICs "Unidentified Network"

I have a DELL VRTX with two M620 Blades. I have an issue with one of the Blades. Both NICs come up with "Unidentified network". I got the server 2.5 years ago and run Hyper-V on the Blades. ...
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3 votes
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File server fail over cluster

In my domain environment I have a guest machine that acts as a file sever. I've recently purchased a new server for the purpose of implementing high availability between the 2 servers/sites. How can I ...
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Cannot set static IP to host machine after adding Hyper-V role

On Windows Server 2022 Datacenter edition, we have enabled Hyper-V role. Before that the Ethernet interface of the server had 192.168.50.4 as the static IP address and it worked fine. After enabling ...
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Can a Hyper-V VM made from a Server 2012 R2 domain controller backup be used to replace the physical domain controller if it fails?

We have a Dell PER520 with Server 2012 R2 running 5 servers; AD DS, DHCP, DNS and WDS. We created a Hyper-V VM on another server using a bare metal backup created with Windows Server Backup. The VM ...
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Changing Hyper-V extended replication 'backoff' time

Is it possible to change the 'backoff' or 'wait' period before a server retries the extended replication process again? The reason I ask is because we have the following scenario: Main Server -> ...
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Redirect 127.0.0.1:80, 127.0.0.1:443 and 127.0.0.1:8080 to an Hyper-V virtual machine

Alright so the title may be a little misleading but that's the best I could find. Here is what I am trying to accomplish: I am on Windows 11 Pro. I have a virtual machine running Debian 11 on Hyper-V. ...
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No incoming traffic on Hyper-V Adapter inside VM

I have a very annoying problem with my Hyper-V setup and it's bugging me quite a bit, because I can't figure out why. My Hyper-V Host is a Windows Server 2019 and has three network adapters. Adapter 1 ...
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Orphaned Domain in Windows Forest - Unable to Connect to Cluster in Hyper-V Failover Cluster Manager

Have a question here that pertains to an orphaned domain, specifically trying to connect to a Hyper-V cluster in Failover Cluster Manager. We have a Windows forest with a root domain of domain.tld. ...
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Assignee specific VM to non admin user in Hyper-V

I have a windows server 2016 with AD and Hyper-V installed I have some users and some VM in hyper-V for example UserA and UserB and UserC , and in Hyper-V I have VMa,VMb,VMc is it possible to give ...
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DockerDesktopVM can't start due to Hyper-V

For some reason I keep getting the error that "DockerDesktopVM" can't be started because a Hyper-V component isn't running, but how do I change that? I found people adding commands like ...
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Adapter VMQ and processor groups in Hyper-V (using Switch Embedded Teaming) not working

I thought I had a pretty good understanding of virtual machine queuing but I am getting unexpected results that I do not quite understand. I have a system that has two processors in it with each ...
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Unidentified Network on Guest VM Hyper-V Manager

I am recently in charge of setting up a new ticketing system on one of the servers, I created a virtual machine in Hyper-V Manager with the Guest 1 option and installed Windows Server 2016. After ...
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Windows Server 2019 Windows Backup Issue with Hyper-V

I am running Windows Server 2019 and have configured Windows Server Backup. The backup is to a dedicated backup disk and consists of the following options: Bare Metal Recovery C: System Reserved ...
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