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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Virtualized pfSense 2.0.1 affecting Hyper-V host connectivity? arp?

The Setup I have setup pfSense 2.0.1 (64bit-amd image) as a host in Hyper-V. As described in other blogs I had to do the “ifconfig down deX”, “ifconfig up deX” to get the network up and running. The ...
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584 views

Virtual Machine Manager 2012 CPU Average

What exactly is the CPU Average field in VMM 2012 showing me? I'm running Server 2008 R2 with VMM 2012. My server has 2x16 core CPUs installed. An example virtual machine has 4 virtual processors, ...
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220 views

Hyper-V vss-writer not making current copies

I'm using diskshadow to backup live Hyper-V machines on a Windows 2008 server. The backup consists of 3 scripts, the first will create the shadow copies and expose them, the second uses robocopy to ...
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115 views

Hyper V 2012 and SQL Cluster Live migration

I've been doing allot of searching and even asked around here at the office without a good answer. I would like to know, within Server 2012 R2 Hyper V, can you or can not do a storage migration of a ...
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1answer
616 views

Most VMS refuse to start

Setup: Virtual Host, running server 2012, hosting around 10 production VMs Problem: Last night, 2 VMs stopped with no warning, event log notification, or any information. The rest of the VMs on this ...
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710 views

Personal Virtual Desktop Collection: User Assignment

Using Windows Server 2012 Remote Desktop Services, I have a 'Personal Virtual Desktop Collection' with automatic user assignment enabled. According to Microsoft "Personal virtual desktops are ...
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1answer
78 views

Allow Non-Technical Staff to reboot a Hyper-V VM

I have a Hyper-V host machine with a number of guests. One of the guests is a Linux VM running a vendor app that isn't exactly the most robust piece of software in the world. About once per week, ...
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1answer
448 views

Cluster-Shared Volume on Windows Server 2012 R2 drops off with minor iSCSI pauses

We are running into an issue here where the Cluster-Shared Volume attached to our Hyper-V 2012 R2 cluster is being dropped off / faulted with the slightest interruption from the iSCSI SAN connection ...
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1answer
2k views

Why am I missing 4GB of RAM on Windows Server 2008 R2 64bit?

I noticed today that a server was very low on memory. It physically has 8GB installed and runs Windows 2008 R2 Standard 64bit. It also hosts 2 virtual machines using HyperV. Server is Dell ...
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1answer
164 views

What is the most reliable and effective way to compact a Hyper-V or Boot to VHD Virtual Hard Disk (VHD) file

I've seen (and tried) many ways to skin this cat, but none are quite as effective as I thought and require a number of manual steps. Here is my scenario: 1) I have installed an OS on a Dynamic ...
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1answer
39 views

Alternative for Obsolete -VhdDestinationPath Parameter

I am trying to import a virtual machine with PowerShell and I want to specify which folder the VHD file should be placed in. According to http://technet.microsoft.com/en-us/library/hh848495.aspx the ...
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662 views

Why is cpu power management not working in Server 2012 with Hyper-V?

We've been using Server2008R2 with Hyper-V for a couple of years now and chose it at the time because of its ability to make use of Intel SpeedStep and AMD PowerNow! Now with Server 2012 and Hyper-V ...
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2k views

Could not display DNS Resolver Cache in Windows Server 2008 R2 in Hyper-V environment

Currently I had a Windows Server 2008 R2 running in Hyper-V, previously it still able to access any kind of website with domain name. Recently, it failed to do that any more, and I found out that I ...
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1answer
780 views

Gave up waiting for root device after update to 12.04 in hyper-v

I have an Ubuntu 11.10 VM which I just upgraded to 12.04. The installation went fine, but now using the 3.2.0 Kernel it fails at boot with Gave up waiting for root device. ... ALERT! ...
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239 views

Configure incoming connection (VPN) on Microsoft Hyper-V 2008 via command line

In both Windows 7 and Windows Server 2008 (R2), it is extremely easy to allow incoming connections (VPN). Just go to overview of network adapters, click 'file' and click 'new incoming connection'. ...
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400 views

How to properly setup a Virtual Network on Hyper-V (Windows 2008 R2) that provides external connectivity to guests

I have a Hyper-V machine with one NIC card. I've set up a Virtual Network and provided connectivity to the guest OSs. The problem is that on restart of the host machine, i start up with no ...
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36 views

Hyper-V virtual machine appears in PowerShell but not in Hyper-V Manager

Im trying to manage my Hyper-V virtual machine in Hyper-V Manager but they are not there. I can configure them in a drop down box but I cannot start them and stop them. If I go to PowerShell and try ...
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56 views

Hyper-V virtual machine upload speed unbelievably slow

I have the weirdest problem I was hoping you could help me with. I've got a dedicated Server 2012R2 server with an Intel 82580 network adapter. It runs a couple of VMs in Hyper-V that are attached to ...
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1answer
72 views

HyperV External Switch Multiple VMs

I'm quite new to hyperv and I am having problems setting up network access for my VMs. The host has two physical network ports and I've assigned one to an external virtual switch. I've then setup two ...
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1answer
107 views

Azure VM crashed and I recovered the VHD however cloud-init prevents me from booting it locally

One of our VM's suddenly was stuck at 100% CPU load and was unable to be reached from SSH. Rebooting did not help, nor did creating a new VM from the existing VHD. I downloaded the VHD. However, I'm ...
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1answer
571 views

Hyper-v Virtual Network Switch Configuration

I have Hyper-v Running. What I am trying to do is setup a CentOS firewall box which will forward all traffic to the 2nd VM CentOS box which has an internal adapter and only seen by the 1st VM ...
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106 views

HyperV dedicated physical adapter for Client OS or the same virtual adapter for Host OS & Virtual OS

I have a Windows machine with HyperV and Client OS (Windows too). This machine have two physical Ethernet adapters (both 1Gb/s). Adapters are connected now to the same router and ISP. Hyper V can ...
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372 views

Timed out trying to acquire network configuration lock, current owner = 'iphlpsvc.dll'

I am getting the above error when trying to configure Hyper-V virtual switches. This happened no matter what type of switch I try to create. PS C:\Users\Martin> New-VMSwitch -Name “NewSwitch” ...
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116 views

Create VHD file from a folder?

My scenario : I have 100 Gb of data that contain a lot of folders and files , so is there a way to create a VHD file from this folders and files ? Any help is thankful .
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1k views

Hyper-V connecting to a remote machine shows "The operation on computer 'x' failed

I'm running Hyper-V manager using this command: runas /user:DOMAIN\username "mmc \"C:\Program Files\Hyper-V\virtmgmt.msc\"" It is using a runas because the user I am logged into my machine as ...
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121 views

Remove hosts from Hyper-v virtual machine connection list

When using the Hyper-V Virtual machine connection program to connect to a VM on another host, you can type the name/IP of the host in the first drop down, and then the second dropdown populates with ...
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589 views

Cluster Shared Volumes offlining under excessive use

I am trying to understand (and ideally fix) a particularly annoying phenomenon I've noticed with Failover Clustering and Cluster Shared Volumes in conjunction with Hyper-V. It appears that under high ...
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472 views

Adding existing Host to SCVMM: Error 2912

When trying to add an existing Hyper-V-Host to SCVMM I get the following error: Error (2912) An internal error has occurred trying to contact an agent on the %serverName%. (Unknown error ...
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339 views

Windows Server 2012 RD services: Cannot connect to a Virtual Desktop

Following a few tutorials I setup a server and installed 2012 RD services on it. I created a new pooled, managed desktop collection with only one VM which is connected to an internal vSwitch. From ...
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543 views

Windows Server 2012 R2, multiple Hyper-V Virtual Network Switches for multiple VMs

I want to configure something like this: I have one NIC, and have been given 3 IPs by datacenter, on my server which is running WS2012R2, with 10 VMs on hyper-v. Windows Server 2012 R2 (host) one ...
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729 views

VM is unable to access file share on Hyper-V 2012 Host

This problem just started recently. I have a number of VMs (2008 R2) on a 2012 Hyper-V host but not all are effected in the same manner. The VMs are identical and no changes were made to either the VM ...
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345 views

Hyper-V machine on Server 2012 losing connectivity randomly

I have start using Hyper-V on my Microsoft Windows 2012 Server, hosting a 2012 server. But randomly my virtual machine loosing connections, i see it now when i trying to copy data to it from a old ...
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88 views

Hyper-v takes a long time to create snapshots

I'm not sure when, but I've noticed as of recently, whenever I go to make a snapshot of certain machines, it hangs at 2% for a good while and then eventually finishes (fairly quickly, actually). I ...
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243 views

Hyper-V Core with Basic UPS options

Good morning, running Dell T610 server with Hyper-V Core, just a few VMs, hardware Firewall & Router. My old Belkin UPS failed today so I need to replace asap at cheap cost where possible probably ...
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700 views

No disks were found on which to perform cluster validation tests

I am trying to make a cluster of two Hyper-V machines running Windows Server 2012. There is a SAN available in which I have created several partitions to use such as J drive, K drive L drive etc. ...
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29 views

Can't connect to network machine by the name specified in the DNS

I have a virtual machine in Hyper-V using an external network switch. In the network there is a Windows 2008 R2 server which is DC, AD and DNS. In the vm IPV4 settings for the NIC I'm specifying the ...
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135 views

Hyper-V: Monitor and restart unresponsive hyper-v guests

I'm looking for a simple solution to monitor and restart unresponsive Hyper-V guests. I only need this solution for a handful of machines, and only around ten guests. It's mostly Ubuntu guests that ...
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232 views

Hyper-V - Export vs copying files

Exporting and importing doesn't work but copying the very files does. Have I broken something? On a Windows 2012 Hyper-V I tried copying a VM through "Export" and then "Import" and also "Export" and ...
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84 views

Errors after moving DB from server

I am moving a database (MS SQL Server) from a server to a new one (virtual machine). Running CHECKDB on the original server I get no errors, the DB is OK. After moving the DB to the new server and ...
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1k views

Hyper-V cluster: Unable to fail VM over to secondary host

I am working on a Server 2012 Hyper-V Cluster. I am unable to fail my VMs from one node to the other using either LIVE or Quick migration. A force shutdown of VMHost01 will force a migration to ...
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119 views

Converting Physical machine to Hyper V VM

I'm running a Physical machine with Windows 7 Ultimate mainly as a file server with 2 hard drives with all the file content stored on D drive with C mainly for OS. This file server is accessible by ...
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0answers
244 views

Cannot access Hyper-V machine via OpenVPN

We have an XP/SP3 Hyper-V machine running at Windows2012 Server. There is no problem to connect that virtual machine via mstsc or ping it from within our LAN. We have a branch in other city. They ...
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2k views

Windows Server 2012 Hyper-V stuck at stopping. Computer will not restart nor shutdown

I have a major problem with Windows Server 2012. If a VM is stuck at "Stopping", it is impossible to reboot or shut down the machine. During the shutdown process Windows goes to the screen which says ...
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46 views

How do I configure Hyper-V storage so I can live migrate servers?

I have setup 4 Hyper-V 2012 servers each running 6-8 VMs, I have one SAN. I have created 1 volume on the SAN called HyperVServers and I connect to it using iScsi from each Hyper-V host (same mapped ...
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244 views

Unable to restore a VM in Hyper-V on Windows Server 2012

for some unknown reason I can no longer find the VHDX file of my VM in the host's disk. I did find however a BIN file and VSV file, is it possible to restore the lost VHD from these two files? ...
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651 views

HP Proliant ML150 G5 - Hyper V Server - 2012 - Hardware Monitoring

I've inherited a HP Proliant ML150 Gen5, I've installed Microsoft's free Hyper-V Server 2012, with minimal issue. I'm running VM's without issue, however I'm wondering what I can do for hardware ...
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199 views

How to automatically create an RDP session with a dynamic IP address under Hyper-V?

My current virtual machines just use dynamic IP addresses. (Hyper-V under Windows Server 2012) If I look at the Networking Tab I can see the IP Addresses used: What I really want to do is create ...
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150 views

Sonicwall NSA with ping/Internet to wake

We have an Sonicwall NSA with some VMs running on Hyper-V in 2 x LANs connected to it. The VMs in the 1st LAN are fine however the VMs in the second LAN keep losing their WAN connection and therefore ...
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2k views

Centos 6.3 on Hyper-v - startx xorg-X11 no /dev/fb0

I am running Centos 64-bit 6.3 on Hyper-V 2012. Logged in to the local console via the Hyper-V Virtual Machine Connection, I type startx but get the following failure and message: I do not have a ...
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24 views

Unable to see Ubuntu 15.04 Server VM IP Address in Hyper-V Manager

I recently spun up an Ubuntu 15.04 Server VM on Hyper-V. When I look at the VM in the Hyper-V Manager, it does not display the DHCP-assigned IP address, but reports the status is OK. When I SSH into ...