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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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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1answer
353 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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2answers
2k views

Backing up Hyper-V VMs using “wbadmin” failing on Windows Server 2012

I'm trying to backup a single VM using "wbdamin". I'm using this command-line: wbadmin start backup -backupTarget:d: -hyperv:VM_Machine_Name -quiet But the backup have no success. Looking at my ...
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1answer
664 views

Is Dell Poweredge 2950 faster than Dell Poweredge R820? [closed]

I have a 10 year old Dell Poweredge 2950 that will be replaced with a Dell Poweredge R820. Both of these machines are set up as a Virtual Machine Host Running Hyper-V. Both Operating Systems are ...
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1answer
815 views

How do I install the evaluation version of Windows Server 2012R2 VHD within a Windows Server 2008R2 Hyper-V system? [closed]

I have a Windows server, 2008 R2 running Hyper-V. I have downloaded the Windows Server 2012 RC DC version from here. I am "forced" to install a download app that copies a .vhd file to my chosen ...
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2answers
222 views

non-GUI connection to local Hyper-V VM without network

I have a virtual machine on Hyper-V manager (Windows 2008 R2) without a network configured on the VM. From a powershell script running on the host Windows server, I would like to query into the OS of ...
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1answer
706 views

Hyper-V Enhanced Session Mode not working for a user

A user can connect to a VM running Windows 8.1 through Virtual Machine Connection, but is unable to listen to audio. The Admin was able to connect to the same VM from the user’s computer and sign on ...
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2answers
5k views

Removing Hyper-V role from Windows Server 2012 R2

I am attempting to remove they Hyper-V role from a Windows Server 2012 R2 machine. When attempting to do so via the "Add Roles and Features Wizard", the check box is grayed out and it will not allow ...
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1answer
735 views

Hyper-V cluster with different cpu

i have these three servers with different CPU : First Server : Intel Xeon E5645 2.4Ghz 12M Second server : Intel Xeon X5660 2.8Ghz 12M Third Server : Intel Xeon X5550 2.6Ghz 8M I want to install ...
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1answer
166 views

Hyper V VM's on Windows 2012 host have no web access [closed]

Using the Hyper V role in Server 2012 to create Windows 2008 R2 VM. Host has one NIC. Virtual Switch was set up as below: set as external network 'allow management OS' was checked. switch was ...
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0answers
692 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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1answer
111 views

Assigned VHDX disks not recognized as physical disks by guest

I have the following setup: Host: Hyper-V on Windows 8.1 Guest: Windows Server 2012 R2 On the host, I assigned 4 VHDX files to the guest, where one holds the operating system: PS ...
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0answers
573 views

HyperV guest external IP: RRAS NAT on host VS direct access to external network with Microsoft Virtual Switch?

I have Win2008 R2 HyperV host with one physical adapter running a bunch of VMs. I have a subnet of external IP addresses: x.x.x.208 / 255.255.255.240 I used to have the following setup: host OS ...
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1answer
251 views

Convert Folders to VHD file

I have a partition 200 GB contain 100 GB of Data, the Data is a huge number of files and folders (about million of files and folders). I want to copy this 100 GB of Data to another partition but i ...
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1answer
104 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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1answer
583 views

is it possible to configure Hyper-V host to block certain traffic for guests?

I have Windows 2008 R2 server with Hyper-V role enabled, and a number of Hyper-V VMs. Of of the VMs is CentOS SIP server. I want to block all incoming traffic from external IP address on certain ports ...
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0answers
393 views

Hyper-V client regularly disconnects network adapter

We recently installed a Windows Server 2012 R2 guest on one of our Server 2008 R2 based Hyper-V hosts. This machine was going offline every night around midnight. Upon checking the event log, I ...
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2answers
157 views

Does Hyper-V support digital signatures with VHD disk files?

Does Hyper-V provide a mechanism (like ESX/vSphere) to identify digitally signed VHD files? Is it even possible to sign a VHD file? Background: I am trying to provide a virtual appliance to my ...
2
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1answer
277 views

Intermittent 100% CPU on all VMs [closed]

We're a small shop, running a Dell T420 (dual CPU, only one present, 6 cores) w/32GB RAM as our main server. We have only 5 VMs, one of which is our WSE 2012 DC. From time to time, and at a rate for ...
4
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3answers
89 views

Virtualisation suitable for packet-intensive application?

We have a custom and VERY bespoke application that runs on a Windows 2008R2 server. It's primary function is to connect to many tens of thousands of IP addresses as quickly as possible and interrogate ...
3
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1answer
997 views

Cannot connect to SQL Server 2012 Express instance outside a VM

I'm trying to connect to a SqlServer instance - located in my host machine - from my VM, using Sql Server Management Studio. From my host I can connect to both SQL instances using SSMS, but when I ...
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2answers
518 views

shrink my hyper-v unallocated drive

I have a hyper-v server that I originally created several partitions on but moved those to attached drives. Here is the drive now: I'd like to remove the 160gb Unallocated space. I tried to ...
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1answer
221 views

Why use a converged network design in Hyper-V?

I am reorienting myself to Hyper-V in its Windows Server 2012 R2 incarnation and have spent a fair bit of time reading Microsoft's Designing Your Cloud Infrastructure documentation. I am in the SME ...
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1answer
350 views

Running Snort on Hyper-V

After spinning up a VM for Snort (actually BT5..) and starting snort, I'm getting numerous "SNMP Public Access udp [**] [Classification: Attempted Information Leak] [Priority: 2] {UDP} ...
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176 views

Hyper-V running out of MAC addresses? Any known issue?

Since some days for a customer of mine Hyper-V requires static MAC addresses to be assigned. Starting a VM with a dynamic MAC address results in a start errir; "No available MAC address for network ...
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1answer
74 views

Hyper-V network dies after a few days of uptime

I have a Hyper-V server that randomly just drops off the internet in no specific pattern. It will go fine running five VMs that all have their own IPV4 in a /29 subnet. The host machine is on a ...
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1answer
176 views

Hyper V with a DELL MD3000 Poor I/O

Current build is 2 Dell R900 24core each 128GB ram - 8x 144GB 15k 2.5 SAS on a Perc 6i local - 15x 300GB 15K 3.5 SAS in a Raid5 DG 6 VG in the MD3000 using 2x Perc 5e HBA - OS Windows 2012 R2 ...
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1answer
215 views

VM that allows host to communicate with guest while using a VPN [closed]

My goal: Run a VM locally hosted on my Windows 7 box that runs Windows Server with IIS as the guest VM. I want to communicate with with websites on the guest (Windows Server) with my host (Windows ...
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4answers
557 views

VM Corrupted, what's the next step?

So one of our older VM's, which usually has no issues, is giving this error now when starting. It keeps going in a loop restarting and turning off with this error message. I figure it's probably ...
4
votes
1answer
160 views

On server 2008 R2 shutdown not enough time to save all Hyper-V VMs

I have a Windows Server 2008 R2 host with lot of VM's on it. Due to specific usage requirement I need all of the VM's states be saved on server Shutdown but it takes too much time (about 20-25 ...
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1answer
243 views

Regular periodic CPU spikes from hyper-v vmms.exe

On a fresh install of Windows Server 2012 R2 in a Hyper-V host role, with four VMs running but idle and nothing going on in any of the VMs or on the host, I get a periodic CPU spike on a regular ...
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2answers
881 views

Hyper-V Reporting Wrong Uptime

I am having an issue whereby Hyper-V Manager does not report the correct uptime for some of our Virtual Machines. I had started all the Virtual machines minutes apart but on the Hyper-V Manager there ...
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2answers
377 views

Selecting a boot drive for Hyper-V 2012 server - is a boot drive performance important?

I'm setting up a new Hyper-V 2012 server dedicated to virtualization and I'm trying to determine the best choice for the boot drive. I have 2x250gb SSD drives i'm considering for storage pools for ...
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0answers
46 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 ...
3
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1answer
587 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 ...
2
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1answer
304 views

Disk Space Difference On Hyper-V Server OS VS VM Guest OS

I have a Windows Sever 2012 Standard 64-bit running Hyper-V. The Hyper-V is hosting a guest OS of Windows 7 Professional 32-bit. I noticed that I was running out of disk space on my server. So I ...
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1answer
3k views

Hyper-v 2012 R2 Nic Teaming with VLAN's

Currently have a 3 node 2012r2 cluster. Everything is working fine without any issues with networking / VLANS / etc... The issue that I am having is needing to define the VLAN at the Guest VM ...
3
votes
3answers
321 views

Can a Hyper-V machine be made slower and/or emulate a slow network connection?

I need to reproduce an issue with a client-server asynchronous communication (a bunch of JavaScript AJAX vs. an OData api), seemingly caused by some race condition in the calculations when the server ...
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1answer
61 views

Re-purpose DD660 (DataDomain) for VM Storage

We have an un-used DD660 (DataDomain) and an un-used x3650 M2 that we are wanting to use as a test bed for playing with Hyper-V as we look into it vs. VMware. Has anyone used a DD660 is simply ...
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1answer
45 views

What's the difference between import virtual machines types in Hyper-V 2012? [duplicate]

I was importing a virtual machine to my Hyper-V manager and I got 3 options: Register the virtual machine in place Restore the virtual machine in place Copy the virtual machine What's the ...
0
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2answers
156 views

How should I set up my Hyper-V server and networks topology?

I am setting up a pretty decent server running Windows Server 2008 R2 to be a remote (colocated) Hyper-V host. It will be hosting Linux and Windows VMs, initially for developers to use but eventually ...
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1answer
318 views

Configuring 1 socket with multiple core on Hyper-V

I've got a Hyper-V 2012 running and need to configure that my virtual CPU are based on one socket. So the guest is seeing one socket with e.g. 4 core. I've found some tool called cpu z should do that, ...
6
votes
1answer
4k views

What's the difference between import virtual machines types in Hyper-V? [closed]

I was importing a virtual machine to my Hyper-V manager and I got 3 options: Register the virtual machine in place Restore the virtual machine in place Copy the virtual machine What's the ...
2
votes
2answers
4k views

Microsoft Emulated IDE Controller Error

While I was starting my vm I got this error Microsoft Emulated IDE Controller Error(Instance ID 83F863B-8DCA-9EDA-2CA8B33039B4): Failed to Power on with Error 'The process cannot access the ...
3
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1answer
72 views

Hyper-V 2012 R2 Generations

Can anyone differentiate between generation 1 and generation 2 in details? Just like a comparison to make to much more clear. Thank you
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1answer
132 views

Hyper-V prevented starting virtual machine because it is prepared for failover

I got this error while I was using Hyper-V Replica Hyper-V prevented starting virtual machine because it is prepared for failover. Any Solutions?
2
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2answers
388 views

How to add NT Virtual Machine\Virtual Machines to GPO?

I have a Windows 2012 Server with Hyper-V enabled and a few virtual machines. My current configuration has a few account in the "Log on as a service" list in the domain policies, and sometimes this ...
2
votes
4answers
758 views

new hyper V High Avaliability setup and SMB 3.0 storage

I am looking at building an new 2012 R2 with Hyper V setup, everything has to be HP hardware. 2x HyperV 2012 R2 servers running 20-30 VMs. These will be dual 6 core xeons with 128gb of ram. 2x 2012 ...
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1answer
5k views

How to delete hyper-v virtual switch extensions adapters from device manager

How to clean that hyper-v mess? I just want to delete all of them. And yes, right click -> uninstall does nothing :( I tried deleting the regedit entries and got a permission denied. I tried to ...
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1answer
370 views

How to exclude VHDX disk from snapshots on Hyper-v

(I'm using the built-in Hyper-V that comes with Windows Server 2012 R2) I want to play with my snapshots while I have a separate disk that would not be affected by those snapshots, thus I can store ...