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 2008, and as an installable role in Windows Server 2008 R2 and Windows Server 2008 (the former containing the later release of ...

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Windows Server 2012 - Hyper-V - iSCSI SAN - All Hyper-V Guests stops responding and extensive disk read/write

We have a problem with one of our deployments of Windows Server 2012 Hyper-V with a 2 node cluster connected to a iSCSI SAN. Our Problem Our problem is that for some reason all of the VMs stops ...
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2k views

User 'X\y' failed to create external configuration store at 'D:\Hyper-V':

I have a Hyper-V server which has served me well, so far. It's been in a workgroup until recently, and has hosted four machines. I hadn't used it for a while and decided to join it to my new domain. ...
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19 views

Hyper-V Manager - Use HTTPS with WinRM

I've successfully configured WinRM on my Hyper-V server to use HTTPS. I am able to connect to it and execute commands from my client PC by using the same local username and password on both (they are ...
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194 views

Hyper-V lost synthetic NIC after Debian 8 dist-upgrade?

I'm running a Debian 8 vm on Hyper-V (Win Srv 2012R2) and when I did a dist-upgrade of stable, I lost all network connectivity. Using the console, I was able to see the network interfaces as UP but ...
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46 views

HyperV - responsive VMs

I'm new to Hyper-V. We have provisioned some good server hardware (12 CPU cores (24 vCPUs), 128GB RAM - for future growth) and imported 6 existing Windows 2003/2008 servers all of which host websites. ...
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467 views

Debian Jessie Hyper-V 2012 - ksoftirqd using lots of CPU time

I have a Debian VM running which uses quite a bit of CPU time in ksoftirqd. I have other servers running Ubuntu (both 12.04/14.04) that do not have this same issue at all and may have to migrate back ...
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13 views

BITS Compact Server, can this be installed on Windows 10 Pro?

I'm trying to use Microsoft Virtual Machine Converter to connect to an old laptop and create a VM from it, but it needs BITS compact server installed and I can only find how to install this on windows ...
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27 views

Converting virtual drives from .vmdk to .vhdx produces huge files

I'm using powershell and ConvertTo-MvmcVirtualHardDisk cmdlet to convert .vmdk disks into .vhdx disks to be able to run them in our hyper-v environment. For some reason, the .vhdx files produced are ...
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101 views

Using a scanner with thin client, RemoteFX redirect not working

So I work IT for a small company and we are testing and considering rolling out Dell WYSE Rx0L thin clients to our employees. So far all is going well, except for our set up for our Data Entry dept. ...
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94 views

How Hyper-V server 2012 shares processor usage over virtual machine?

I have a Hyper-V server 2012 installed on my physical server (bare-metal). For testing purposes I created 2 VM machines (windows 7) and began testing server processor usage while VM runs at 100% ...
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645 views

Connect Hyper-v Manager on domain PC to a workgroup Hyper-V Server

We have a small lab network: There is 1 server running Windows 2012 R2 Hyper-V Core. It is not joined to a domain. My PC is part of a domain, running Windows 10 When I was running Windows 8.1, I ...
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128 views

Hyper-V Failing to create new VM with error 0x80070531

Running Windows 2012 R2 Datacenter, with Hyper-V role installed, domain joined, domain account is both a local admin and a hyper-v admin. If I try to create a new virtual machine (either via UI, or ...
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219 views

Exchange 2013 unable to receive mail from internet and internally after installing Hyper-V on Windows Server 2012

After checking on https://testconnectivity.microsoft.com/ i am getting the error The server returned status code 451 - Error in processing. The server response was: 4.7.0 Temporary server error. ...
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121 views

Hyper-V Replica Capacity Planner stuck getting VM information

I'm trying to use the Capacity Planner for Hyper-V Replica tool to estimate requirements for a replica site. It keeps getting stuck "Getting the VM and VHD from primary site, this can take upto ...
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101 views

How do I prevent directed broadcast packets in Hyper-V using virtual network adapter

When I connect two physical subnets by using a Cisco Router, I can configure the router to disable directed broadcasts (that could be used for example to send Magic packets for waking up Computers ...
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1k views

FreeRDP USB Redirection Not Working on Hyper-V?

I have compiled FreeRDP from the tip of the Master branch on (and for), an ARM v7 processor, (see cmake command line below). It all seems to build correctly and the basic xfreerdp client works for a ...
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2k views

Hypervisor The operation cannot be performed while the object is in it's current state

I attempted to reboot one of my VMs in the Hyper-V Manager. It's a Centos VM and all of my other centos machines are behaving as they should although I can't get this particular one to boot. I'm a ...
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1k views

Trying to boot a diskless server to Windows 2012 using iSCSI and Differencing VHDs

We are in the middle of a big VMware to Hyper-V migration at the moment. Part of this process is going to be changing some of our existing ESXi servers to Hyper-V. These ESXi servers don't have hard ...
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191 views

Windows WMI get a snapshot EnabledState

I am trying to get the EnabledState of a virtual machine snapshot using WMI. That is I try to get the EnabledState that was current for the virtual machine when the snapshot was taken. So far I know ...
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721 views

hyper-v 2012 forward all packets to a virtual NIC (promiscuous/hub mode)

I have read from numerous sources that Hyper-V 2012 does not allow all packets from a physical NIC to be forwarded to a virtual machine. My situation is described in the pic below where I want all ...
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53 views

Hyperconverged Hyper-V using three servers

Currently I have two independent servers running Hyper-V. I`m looking for ways to add more redundancy and bought a third server that equals the capacity of server 1 and 2. I would like the third ...
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22 views

Auto Set VLAN ID Hyper-V 2012 R2 Cloud

I have a lab environment with multiple clouds configured in Hyper-V SCVMM. When a guest machine is created in the correct cloud say "Yellow" it is randomly given one of the 5 Vlans we use. If it is ...
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49 views

Restore and Backup Hypervisors

So, I have two hypervisors (Hyper-V and VMWare ESXi) running on bare metal in two diferent machines. What I need is to make an installation and configuration in two other machines with the same exact ...
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87 views

Hyper-V CentOS 7 guest has no keyboard in recovery modes

I am working with CentOS 7 as a Generation 2 guest on Hyper-V 2012 R2. Everything runs fine, but I am unable to control the guest when I boot it into certain systemd targets. For instance, if I were ...
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91 views

VM Viewer cannot open console: “A connection will not be made because credentials may not be sent to the remote computer”

since some time - after we installed the latest Windows Updates on the Hyper-V hosts - we are having serious issues opening the remote console of a VM running on the Hyper-V hosts. Scenario: ...
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26 views

Hyper-V 2012 R2 x64 UpdateID

I'm trying to write a powershell script in order to manage my updates for multiple Hyper-V 2012 R2 machines. To problem i stumbled upon is that i am unable to find the updateId for it so i can manage ...
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44 views

Hyper-V avhd files compressed

I have inherited a machine at a client site that the previous IT person thought it would be a bright idea to compress all the AVHD and the base VHD files for one of their servers running under hyper-v ...
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133 views

Hosting a Odoo 9 onsite with Hyper V- Security concerns

I have a small business network: Hyper V Host (2012R2) VM-Active Directory (2012R2) VM -application, print, etc server (2012R2) Several client pcs, some on domain, some not, all running Windows 7 ...
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24 views

unable to see VM template from Hyper -v 2 during collection creation on connection broker

enter image description here I have two Hyper-v host server, hyper-v 1 & 2. During collection creation on connection broker, I can see VM Template from hyper-v 1 but I am unable to see any VM ...
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32 views

Recovering from a HyperV snapshot being manually deleted incorrectly

I have a Windows 2008 Hyper-V (6.1.7601.17514) host which has a guest VM running in Hyper-V. The guest had 2 snapshots created after software was originally installed on it. At some point, someone ...
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34 views

Hyper-V - Upgrading a 3 node 2008R2 cluster to 2012R2

I'm just after a some advice/tips on upgrading our 3 node Hyper-V cluster from 2008R2 to 2012R2. I have 3 x Dell r710s running Server 2008R2DC. These are clustered and running about 15 VMs (5 on each ...
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40 views

Virtualizing some domain controllers in a forest

our company has an AD forest made up of a root domain (domain ROOT) and two child domains (SUB1 and SUB2). The ROOT domain contains 2 DC's. SUB1 has 4 DC's and SUB2 has 3 DC's. Currently all the DC's ...
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52 views

Remote management of Hyper-V server and its VMs

I am setting up a Microsoft Hyper-V Server 2012 R2 server (SRV1) with several VMs. Some of those VMs will contain Active Directory, SQL Server, Apps, etc. I also have a second phyiscal server (SRV2) ...
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118 views

Cant connect to server in Hyper-V Manager

I'm trying to connect to my server (running Hyper-V Core) with Hyper-V Manager in windows 10 and it will not connect, putting out the error: You do not have the required permission to complete ...
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664 views

Can't Connect to some Hyper-V 2012 R2 servers after Windows 10 Updrade on Domain

After upgrading my PC from Windows 8.1 to Windows 10, i am unable to connect to some of our Hyper-V 2012 R2 Servers from Hyper-V Manager. Both my PC and all our Hyper-V servers are joined to the same ...
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35 views

Hyper-V Replication Failures

I have 2 sites with failover clusters running Hyper-V 2012. When I started this job the production website (site A) was on Server 2008 running Coldfusion 9, SQL 2008 all on one machine. I upgraded ...
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75 views

Hyper-v virtual machine acting as two separate vm's

I have a Hyper-V virtual machine (vm1) that has two separate instances of itself. I can log into what should be the same VM (vm1) through Hyper-v and RDP (Remote Desktop Connection) with the same ip ...
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22 views

Force disk cache even if guest uses direct i/o

Have IBM db2 on Rhel on Hyper-V on Windows Server. The *.vhdx file is on CSV. e.g. C:\ClusterStorage\volume1\hyper-v\oktest-lb1\oktest-lb1.vhdx. db2 uses O_DIRECT flag (uncached i/o) for its database ...
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215 views

Unresponsive Server 2012, may be because of Hyper-V

there is a setup: ProLiant, Xeon, 16Gb on the host, 3 VMs (2 servers 2012 + Win7). Not all three VMs work simultaneously all the time. The problem is that sometimes host (and mostly all guests) ...
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375 views

Hyper-V Ubuntu vhdx scsi ide

I have a Hyper-v 2nd gen Ubuntu machine (scsi). I did add the vhdx file to a 1st gen (ide) machine (not as start disk, but to try to use some system rescue cd tools to srink the vhdx zerrofill). I ...
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169 views

Firewall rules to allow Hyper V Manager to connect to Hyper V Server 2012 R2?

I moved a Hyper V host into our Servers OU in Active Directory, which has some group policies linked. Now I am unable to connect to the Hyper V host with Hyper V manager. It was working fine before ...
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302 views

Running a web service from a Win 2012 R2 Hyper-V Host - xDoS prevention

Here's the scenario. We have a Windows Server 2012 R2 Hyper-V Edition hosting three NLB 2012 R2 web servers with our product on them. They receive XML data from connected public servers and work ...
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65 views

Oracle Linux hangs on Hyper-V

I am trying to install Oracle Linux 7.0 on Hyper-V. While I click through the GUI installer the system stops responding. The mouse cursor stays in the same place. It happened to me a few times, ...
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235 views

Hyper-V guest VM disrupt host network connectivity

I'm experience strange connectivity issues on a Windows Server 2012 R2 Standard installation with installed Hyper-V role and one Server 2012 R2 guest machine. Whenever the Guest tries to access the ...
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135 views

Windows 2012 R2 Hyper-V cluster without shared hardware

I have several servers with local SATA/SAS RAID arrays. I would like to run there virtual machines with some level of automated failover - sync VM to secondary node in 1 minute interval and automated ...
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779 views

Convert Hyper-V linux machine to Gen 2

Is there any way I can easily (and without reinstalling) convert a Linux Hyper-V (gen 1) VM to a gen2 one? I know the Convert-VMGeneration cmdlet for PowerShell (this one: ...
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190 views

Domain time drifting with VM DCs / host domain members

I'm following the advice given in this article: ...
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1k views

Cannot connect via RDP due to NLA error

I have one DC that also acts as a Hyper-V host. It hosts a build server, and a WDS server. Up until Daylight Savings happened a few days ago these were both working fine and I could remote in no ...
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333 views

Hyper-V VMs keep losing network connection

We had a major power loss in our server room two days ago and several Cisco Nexus 2232PP FEX devices went down. We were able to get everything back online, but since that event we've been experiencing ...
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92 views

How can I create an external switch but refrain to use the external dhcp in Hyper V?

The requirement might seem strange. I have an organisational network (external network), but I desire to create a own private network of VMs in Hyper-v with its own domain and DHCP server(which runs ...