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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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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1answer
231 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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1answer
197 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
764 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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1answer
782 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
63 views

Hyper-V VHDx Compacting & SIzing Issue - No Minimum Size, Unable to Shrink

Trying to recover ~450GB unallocated space from a VHDx total filesize. Thanks for taking a look at this issue: Hyper-V Server 2012. Dynamic VHDx (we'll call it disk2.vhdx) with a file size of 1.5TB ...
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1answer
40 views

Hyper-V performance and the Save State BIN file

The Hypothetical Scenario. Our small business server has 2x 400GB SSDs and 6 slower 7,200rpm SAS drives. We create a RAID1 array for the SSDs (henceforth Fast Disk) and a RAID10 array for the 6x SAS ...
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votes
1answer
61 views

remote Powershell script Scheduled task

I am having trouble running a Powershell script as a scheduled task. The script remotely logs into two Hyper-V hosts, queries the replication status and emails the result back to me. The script works ...
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1answer
92 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
547 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
3k 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
172 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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214 views

Routing and Remote Access with Hyper-V

I have a server setup with with Server 2012, this server has two NICs. One for WAN and one for LAN. Internet works fine on the server. I setup Routing and Remote Access with DNS and DHCP. Everything ...
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91 views

Restoring read only domain controller from VM checkpoint

I have several RODC on remote sites, and sometimes power failures corrupts ADDS database which takes some time to recover. I'd like to move RODC to virtual machine (on same server) to be able in case ...
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388 views

How to enable multicast on Hyper-V cluster?

We're currently experiencing an issue with multicast packets being dropped by our Hyper-V 2012 R2 cluster and have not been able to figure out how to correct this problem. We have a Juniper network ...
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91 views

Virtual Ubuntu Trusty Server in Hyper-V Server 2012 ocassionly shuts down

I am running a virtual Ubuntu 14.04 Server as a Hyper-V virtual machine. Sometimes after a day or two the virtual machine just stops and shows as off in Hyper-V. Every other VM just runs fine. In the ...
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204 views

How to install CAL for RemoteFX on Server 2012 Standard

I had to enable RemoteFX to be able to use a video card on my Server for Hyper-V 2012. I have ran out of the grace period for Remote Desktop Session Host Server. I have tired to install the CALs that ...
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945 views

Adjusting a VM screen size in Hyper-V

I am using Windows Server 2012 Datacenter. I have installed several virtual machines via Hyper-V and all is good, I moved a VM from another Server 2012 Datacenter over to my server. The VM starts ...
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236 views

Server 2012: Should I use Cached Exchange Mode with Terminal Server?

The setup is a (all brand new) single physical Dell server, with 32GB RAM, running Server 2012. This has a single 3-disk RAID 5 array (DELL PERC) mapped to 3 volumes in Windows. They are SAS disks. ...
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656 views

Hyper-V server with multiple subnets and Active Directory Policies and adding domain objects to local groups not working

My lab is a test HP computer connected to a port on my wireless router. It is running Windows 2012 R2 with the Hyper-V role and I am trying to simulate multiple testing subnets to test a number of ...
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89 views

Remote Desktop Connection loses connect on websites | Hyper V installed

I use RDC to connect to my dedicated server that is running Hyper V for VPSs. On the main dedicated I will visit certain sites, ex. Microsoft site, Chrome site. Those are just some, RDC will freeze ...
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190 views

How do I get RRAS to forward all traffic destined to a particular external IP to a particular internal IP?

I have a dedicated Windows 2012 server at a host that will allow me to run Hyper-V, but I cannot use bridged networking. I would like to get RRAS set up so that my VMs can act like they have public ...
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49 views

Using VHD disk as a centralized backup device?

i have 2 physical servers (3rd will come later) and 2 hyper-vs on 1st one. I would use Windows Server Backup utility for backup all systems. Was thinking about to buy NAS, so i bought it, Synology ...
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90 views

How to keep compatible network adapters when moving from Win2008R2 to Win2012R2

I'm migrating virtual machines from Win2008R2 hosts to a Win2012R2 host. Since there is no direct import/export path due to the WMI namespace change ("did not find virtual machines to import"), I ...
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137 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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758 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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560 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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387 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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562 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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767 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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394 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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100 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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283 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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791 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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33 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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0answers
150 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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268 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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0answers
88 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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0answers
129 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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votes
0answers
262 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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0answers
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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votes
0answers
47 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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0answers
252 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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0answers
718 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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202 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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161 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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0answers
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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0answers
21 views

Weird: access denied moving hyper-v storage on ws 2012 failover cluster except from running node

I have a 4 node failover Hyper-V cluster on Windows Server 2012 R2. The VM storage resides on 2 SMB 3.0 stand alone and independent servers (I intend to create a Scale-Out FS as soon as I can free up ...
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0answers
33 views

Windows Server 2012R2 Standard Hyper-V license

I have a dedicated server running WS2012R2 STD Edition with Hyper-V. On top of that I know that I can have 2 WS 2012R2 STD VMs running as part of the same license as the host. What I'm missing is ...