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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Why am I unable to edit Hyper-V disks for running VMs when permissions are ok

We have a 4 node Hyper-V cluster running about 15 VMs. On none of them I have tested, can I inspect or edit VHDXs on running VMs. I get a permissions error of some kind when attempting to do so: ...
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After how long will Hyper-V replication fail irreversibly?

Quick question, I have a number of servers that replicate to another server, which has extended replication to a third server offsite. The first group of servers (original and first replica) are ...
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Slow file transfer speed between clients and Debian VM on Hyper-V

I have been using a Raspberry Pi as a web server for the last few years. However, I now need something more powerful so I created a Virtual Machine running Raspbian Desktop on Windows Server 2019 ...
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Issues on transferring physical machine to virtual

EDIT - after initial problems, I moved on and have some success, but I still can't boot the machine. I have trouble transferring old 2012 server to virtual. The server is on GPT disk, EFI. What I did: ...
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Hyper-V on Server 2019 - the larger the VHDX file the slower the disk speed

We have a brand new pair of servers for Hyper-V with fast RAID 10 SSDs in 2 arrays. On the host, using Crystal Disk Mark, I get speeds that I would expect like RND64K Q32T12 = 4712.49 MB/S while the ...
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Setting up Remote Desktop for a Virtual Machine into a Domain

I want to set up the remote desktop for a virtual machine that I've just created with windows server. I would like to give access to other domain users(without privilege). But I don't want, when users ...
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File open/copy extremely slow after VM moved to new host

I shut down and exported a Hyper-V VM from one host and imported it to another (did it with several actually). However only my 2 VMs still on 2008 are acting really odd. They are running Server 2008, ...
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Hyper-V Server deployment system requirements. AD, Fileserver, SQL Server [duplicate]

We are looking to deploy a new system to meet new conformance requirements. Instead of setting up 6 different servers I decided it would probably be better to setup 2 Hyper-V servers with 3 VMs each ...
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How to setup a VLAN switch with Hyper-V virtual external switch?

I currently have Windows Server setup with one physical ethernet port (eth0) as an external VLAN trunk connected to a Hyper-V virtual external switch for VMs to share with the host. The host uses ...
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How to open Hyper-V Manager on Windows Server 2012 R12?

I installed the Hyper-V using the the Server Manager, but I still cant seem to find the Hyper-V Manager manager. How do I open it on Windows Server 2012 R12?
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Hyper-V Create External Interface On WiFi Adapter - 2021

I am running a Windows 10 machine with a USB WiFi network adapter. I am trying to create a virtual switch, that is a external virtual switch based on the WiFi adapter so the VMs can get a IP address ...
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Hyper-v VM high CPU usage in Windows Server by task manager?

Windows 2012 std host with Hyper-V. Hyper-V guest VM is Windows server 2019 std Both the host and the VM are setup as separate SQL & IIS application platforms with some light add-on tools such as ...
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HyperV Old Snapshots with No Reference - Can I Delete Them?

We've became aware recently of an issue with Hyper-V and some old snapshots that I'm assuming have been caused by failed Veeam backups (and the checkpoints not being deleted). It's a HyperV Failover ...
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Hyper-V Ubuntu-Server VM not connecting to Unifi USG

I have a network set up with 2 VLANs, one for personal interconnectivity and internet access for personal devices, and another one for non-trusted devices like IOT devices. Here's the network topology:...
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Fix VEthernet IP between restarts

I have some VM on Hyper-V in my development machine. Their net adapter is "Hyper-V Virtual Ethernet Adapter" and each VM has a fixed IP 192.168.2.x Every time I restart my laptop, I have to ...
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Hyper-V Integration Services - Guests stop reporting IP Addresses

I have a few Windows guest VMs running on Hyper-V with Hyper-V Integration Services installed that will periodically stop reporting their IP Addresses to the host operating system, usually after ...
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Ping Request to Virtual Machines Sometimes Drop Sometimes Not

We have installed on a server PC Hyper-V Server 2019 then install three VMs which are Ubuntu Server 20.04. There are two physical ethernet port on the server PC. We configured one of them as a private ...
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Network performance issues between Windows/Hyper-V and remote Linux VM

I'm in the midst of migrating an application away from a Win2k16 server but it seems the win server doesn't agree to the plan. When migrating the data, I realized that performance is incredibly bad, i....
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galera cluster slow on hyperV (faster on ESX)

Solution inline We encountered a strange issue and are basically out of ideas by now: We setup a galera cluster (3 Nodes + MaxScale LB) for a customer and he reported slowness. We were unable to ...
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RRAS, Hyper-V and local network connectivity problems

I have set-up a Windows 2019 Server that: Hosts an old Windows 10 machine as a Hyper-V guest Provides RRAS service and acts like L2TP VPN server L2TP works fine from the Internet, so far so good ...
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Use DDA GPU Instead of Hyper-V Display Adapter

I have a rack server (DL360p G8) running windows server 2019, that among other things, runs a few hyper-v VMs. I recently discovered that I had an old Geforce GT-610 Lying around, and I decided to ...
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Hyper V replication failing : System cannot find the path

I've recently upgraded my hyper v replica server to 2019. It was on 2012 r2 and i performed an in-place upgrade. On three of my biggest VM's i'm failing to enable replication again. I have ...
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Ideal Server Deployment for Windows Server 2019 Active Directory, File Server, and SQL Server

So, we have new compliance regulations we're being required to meet and our current infrastructure isn't quite good enough to handle it. What we need is: 2 x Active Directory Domain Controllers, DNS, ...
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Check if Second Level Address Translation (SLAT) is installed

There are different instructions online to show that you have Second Level Address Translation (SLAT) enabled as a dependency to install WSL 2 and Docker. The simplest way is to run "systeminfo....
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Windows Disk Cluster for Hyper-V Failover Cluster

Looking for design assistance. Typically, I use a 2 node SAN disk cluster running CentOS and DRBD for high availability. I will then connect the hypervisor(s) via iSCSI; sometimes KVM/QEMU, sometimes ...
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Windows Server 2016 VM running on Hyper-V Server 2019 Free Edition - Maximize CPU Performance

I'm running a Windows Server 2016 RDS only OS (no DC, no AD, etc) as a VM on top of Hyper-V Server 2019 Free Edition. I'm attempting to maximize the CPU performance for my 2016 VM, as it's the only VM ...
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Hyper-V 2016 vs KVM Performance

We have 2 VM clusters here with identical hardware, all fully patched to latest levels. We have been testing running some linux workloads on the 2016 cluster and found a big difference in performance. ...
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DHCP addresses for Hyper-V VMs connected to a virtual switch that has a static IP address

I have a hyper-v server that has 2 nics, one for admin stuff, and the other is used as a virtual switch. I have a static IP for the virtual switch, but I need the VMs to get their IPs via DHCP. When ...
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Why do my Hyper-V networks get an IP on my Host Server?

I set up a new Hyper-V Host Server. I run two VMs on this Server, each of them with their own Virtual Network, which is a NIC Team. Here are the teams: [HVHost]: PS C:\Users\xy\Documents> Get-...
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Why can't I copy and paste files out of my VM?

Typically, I do not ever need to copy and paste files out of a Hyper-V VM so I've never given it a try - typically whatever I need out of these networked servers are headed to a network file share ...
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Slow File Transfer Speeds (~300kB/s) Between Hyper-V Guest and Host/Other Remote Machine in Azure

Slow File Transfer Speeds (~300kB/s) Between Hyper-V Guest and Host/Other Remote Machine in Azure I am seeing extremely slow file transfer speeds between the guest VM and the host VM or directly from ...
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Azure Backup - External DPM Online Data - missing Hyper-V servers

We are trying to work through some DR processes. One is how to recover Hyper-V VM backups from Azure Backup. We have on-premise Hyper-V VMs using a VM on-premise to backup those VMs to Azure Backup ...
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Can't get access to Hyper-V servers

I have 3 Hyper-V servers at work. After reconfiguring the network, the servers became unavailable. iLo works (vlan 123), but I cannot ping the physical ports. The server only pings itself. The ports ...
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Is there a benefit to having SSD for OS and spinning disk for VM's

Just about to rebuild a small server which would typically be a couple of 4TB spinning disks in RAID1 to hold the OS and the VM's, for 4TB (x2) the cost is still quite high for all out SSD, but I was ...
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HyperV Edit hard disk is not available because of checkpoints

I am trying to increase the size of my hard drive in a VM. I disabled checkpoints and deleted all existing checkpoints. However, it still will not let me. I also restarted and then shut down the VM ...
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Mac address flapping during VM migration in WSFC

I am trying to troubleshoot an issue with our servers on a customer network. We do not support the network infrastructure. For example, I have 2 nodes(WS2019) in the Failover Cluster. Each NODE have 2 ...
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HyperV VM fails to start, yet settings says it's running

I have a VM that has been running fine. I've changed noting in the host machine or the VM. When I try to start it I get the "Not enough memory in the system to start the virtual machine Fiona. ...
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Opensuse full-screen inside Hyper-v [closed]

I was having problems trying to configure my hyper-v display resolution with an opensuse machine. My "fullscreen" was really small and it's hard to find the solution so I'd like to add the ...
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Server 2012 R2 in place upgrade to server 2016 or 2019 error after first reboot

I'm trying to do in place upgrade from server 2012 R2 to server 2016 or 2019. After installation part and after first restart I get error The installation failed in the FIRST_BOOT phase with an error ...
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Advice on replicating Hyper-V server image

What would be some recommendations for replicating a Windows Server 2019 system image that also contains a couple of Hyper V VMs? I have several identical new Dell Edge servers to set up. Setup ...
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HyperV Error: “The server encountered an error trying to create the Virtual Hard Disk”

I'm currently trying to convert my Physical Ubuntu 20.04 Server to a Virtual HyperV Ubuntu Server. As such, I am trying to convert my physical Ubuntu 20.04 hard drive into a virtual hard disk. I'm ...
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Windows Server 2003 not trusting any device driver (including native ones)

Background: Several legacy Windows Server 2003 systems need to be migrated from VMware to Azure. Yes, we know they have a legacy OS. Yet we have to keep them running. And this is (at least partly) ...
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How to in-place register a VM to the host's default location

There seems to be a glaring hole in Hyper-V's virtual machine export/import toolset. Perhaps I'm mistaken with this assessment, but I don't think so. I have a VM that I restored from backup after a ...
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Is running Hyper-V Server 2019 from a USB flash drive possible and recommended?

I'm coming from running my homelab server with the ESXi bare metal hypervisor running from a USB Flash Drive (UFD). I'm building a new server and looking to eliminate VMware from my installation and ...
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How to download files to Hyper-V Server?

With Hyper-V Server, how do you download a file? It's on a dedicated server at a hosting company, so I can't use USB. It's got no browser. The command prompt's FTP only does active mode (which I ...
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Centos8: VM broken after moving from VMware ESXi to HyperV [closed]

I have moved Centos8 VM from ESXi to the HyperV 2019 core (hdd only) It seems the disks or partitions IDs are broken so it's not staring up properly using default/first Grub menu option. But it runs ...
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Create a static Hyper-V NAT with DHCP

I like to create a NAT for Hyper-V with DHCP. The Default Switch resets the IP after restart which annoys me. So I'm on a mission to create with fixed IP. I followed this tutorial: https://docs....
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New to Server 2019 - Is my domain computer communicating with my Domain Controller?

So I'm very new to Server 2019 and Active directory. No previous experience with any other server OS either. I have set up 2 VM's on Hyper V. Server 2019 and a Windows 10 Pro. I have installed Active ...
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Hyper-V Server SSD vs NVME M.2

I'm quite novice on setting up servers and VMs and I'm trying to setup a simple PC to act up as a server in an office. The requirements are low but I think this is a good opportunity for me to learn ...
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Hyper-V Create Virtual Machine Failed

I have a windows 2012 R2 server with Hyper-V as a role. The server has 6 vm already working. If I use the domain administrator or the local administrator (wich is also in the hyper-v administrator ...

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