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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Veeam Hyper-V backup error: Microsoft Hyper-V VSS Writer VSS_WS_FAILED_AT_POST_SNAPSHOT

I have an error from a Veeam Hyper-V backup of a Virtual Machine in a Hyper-V host: Unable to create snapshot (Microsoft CSV Shadow Copy Provider) (mode: Veeam application-aware processing). Details: ...
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15 views

Cannot ping 2012 R2 host server from external addresses after installing Hyper-V

Development box running 2012 R2, Ubuntu 16.04 in a Hyper-V VM Port forwarding set up on internet-facing router to pass through to host server. Can RDP into the host server just fine. Can ping to/...
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2answers
35 views

Transfer VM from inside (guest OS)

I need to clone VM and transfer it to another (dev) environment. But I don't have access to hypervisor. Do you know of software (trial/free) or algorithm for the task? I'm thinking the steps are ...
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1answer
153 views

Is there a way to recover data from a Hyper-V avhdx file with a broken chain?

I have inadvertently broken the differencing disk chain for a Hyper-V VM on Windows 10. It's not the end of the world, but it would be nice to get the data back off the last avhdx file. I tried the ...
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0answers
14 views

Export or Convert Hyper-V VM to OVA/OVF

I can't find (Google) any documentation on how to export or convert hyper-v VMs to OVA or OVF. The hyper-visor is Windows Server 2012 R2 Standard. The results from Google only point to System Center ...
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3answers
30 views

Hyper-V how to connect compressed NTFS storage or convert it

I am on Windows Server 2012 R2, trying to connect to one Hyper-V virtual machine. The requested operation could not be completed due to a virtual disk system limitation. On NTFS, virtual hard disk ...
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1answer
2k 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 doesn'...
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1answer
23 views

Maximum Timer for Drain Roles?

This is one of those weird questions I would expect to be documented (Especially on Tech Net), but I honestly haven't found an actual explanation. As of Server 2012 R2 you can set your cluster nodes ...
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17 views

Internet on guest machine Hyper-V

Sorry my bad English. I have a server running windows server 2012 r2 datacenter and setup Hyper-v. I already create a vNic bridge to physical network. I have 3 public IP 42.112.xx.168,169,170 42.112....
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24 views

Detect cpu slat capability when hypervisor is running

Hyper-v 2016 TP now requires that you have a processor with SLAT capabilities. Is there a method to find the if this is on a CPU without looking up the CPU docs and verifying? When I run the command ...
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6answers
6k views

How can I compact the VHD file with Ubuntu?

I use windows server 2008r2 with role Hyper-V. The guest system is Ubuntu 12.04 LTC. It is situated on the dynamic virtual hard disk. I want to compact this VHD (The real size is 50 GB, 360 GB on the ...
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3answers
2k views

Disk2vhd : error during copy. The error could not be performed due to an I/O error

I'm trying to convert a fully patched, Windows Server2008 R2 system disk into a VHD by using disk2vhd from Microsoft Sysinternals. Every time, the conversion fails with error during copy. The error ...
2
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3answers
17k views

VHD File Structure - Repair Corrupted VHD

I have a corrupt VHD that I need to get data off of. It is a Windows 2003 x32 Hyper-V Virtual Machine (NTFS). I have a nearly identical version of that VM without the data on it that works. Using a ...
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2answers
325 views

Hyper-V VM bluescreens upon LiveMotioning

I am doing some testing with Hyper-V LiveMotion, and when I stress the VM and try to LiveMotion it, sometimes it'll work just fine, sometimes it'll restart and give no clear error, sometimes it just "...
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0answers
16 views

How can I deploy Hyper-V updates [without pushing an entire VM]?

I have a VM that is sent out to it's users. The users (on Win 8 Ent) can make changes, etc. but every quarter a new version of the 'base' VM comes out. Right now, the plan is to send out full copies ...
2
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1answer
24 views

Exchange 2013: Single user cannot send mail

We have Exchange 2013 on a Windows Server 2012 VM (Hyper-V on Windows Server 2012). Everything has been working for years. But now we suddenly have one user who is no longer able to send any mail. ...
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1answer
1k 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
1k views

Private networks with SCVMM 2012 SP1 and Hyper-V

In my lab I have two hyper-v host running Windows 2012 server. For lab and test purposes I want to have private networks that are available on both hosts, and where the VMs on those networks are able ...
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0answers
14 views

Active Directory tree domain not seen from forest DC

I have four Hyper-V virtual machines with Windows Server 2012 R2 and Active Directory set up. They are all in an Internal switch configuration and can communicate with each-other fine. AD1 is the ...
0
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1answer
1k 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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0answers
27 views

How do I keep 6 Hyper-V machines in sync?

Our build server setup looks like this: 6 x Windows Server 2012 R2, physical machines, each running: one Hyper-V Windows 7 VM each basically using all the resources of the host When we need to add ...
1
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1answer
22 views

Hyper-V VHD running out of disk space

I have a HyperV VM with a dynamically expanding VHD. Current File size = 290GB Max disk size = 300GB The VM itself (Windows 2008R2) is showing as 128GB free of the 300GB drive. What is using up ...
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2answers
18k 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
1k 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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2answers
44 views

VM with two NIC on Hyper-V - how to do that?

I'm new to Hyper-V. How do you configure two IP address on the same VM server? Both IP are on different subnets - one in 192.168.x.x and the other 10.x.x.x. There is an uplink (802.1q) between the ...
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2answers
20 views

Hyper-V DMZ environment

Im facing some problems trying to create a DMZ virtual machine in Hyper-v. Firstly, i want to create a DMZ so the company's smartphones can be managed remotely.We have an ESET ERA server installed, ...
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3answers
1k views

Import VMs with differencing VHD into Hyper-V 2012

I've recently installed Windows Server 2012 to my test server to run Hyper-V test environment. I have bunch of old VMs which were created in Windows Server 2008 R2 Hyper-V which I didn't export in ...
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0answers
45 views

Can't initialize VM's on HyperV Windows Server 2012

I'm really stuck with this and I can't understand why I sunddendly can't make ANY VM to start succesfully in my system. I had just one VM, and it was working perfectly, then for some reasons I booted ...
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1answer
1k views

DNS name server IP keeps reverting back to unknown for forward lookup zone

I'll start by saying I have not worked much with DNS and DC's. I'm a programmer who is trying to build out an environment with a domain to simulate a production scenario. My issue is the forward ...
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0answers
3 views

Cannot connect from Windows 10 Hyper-V Manager to another Windows 10 Hyper-V instance [migrated]

I got a Windows 10 Workstation at home where I installed Hyper-V and run a Windows 10 VM inside it. Then I got a Notebook where Windows 10 is installed and I want to connect and administrate the ...
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0answers
21 views

Routing a port to a VM in Hyper-V on Server 2012 doesn't work

I have CentOS 7 with Apache installed on Windows Server 2012. I use Hyper-V for virtualization. I have 1 public IP address, and naturally I want to forward all traffic to port 80 on that public IP (...
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0answers
67 views

Hyper-V Windows Server 2012 R2 “Cannot create virtual switch” General Access Denied Error 0x8007005

After an ip change on the network adapter connected to a previous hyper-v switch we ran into some issues so I uninstalled the existing virtual switch and attempted to add a new external. I get the ...
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0answers
18 views

Unbind virtual NIC to a physical NIC

In Hyper-V Switch Manager from a remote machine I configured a NIC to be External and with the option for Allow management operating system to share this network adapter. The process failed mid way ...
0
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2answers
35 views

Configuring Remote Shut Down with UPS

A similar question has been asked but there are differences to my situation. 1) A Hyper-V Core machine running three VMs (XPProSP3) (Win2003SP2) it is a system we inherited and migrated from Physical ...
4
votes
2answers
663 views

Restart Hyper-V VM on heartbeat lost

I have a Windows Server 2012R2 hyper-v host. It is running a number of VMs, including a few linux VMs. I have one linux VM that has been occationally, but somewhat regularly crashing somewhere in the ...
3
votes
3answers
80 views

HyperV Failover Cluster (with/without CSV)

Been browsing a few websites, and it seems right now all hyper-v clusters are build on CSV ( clustered share volume ). I have a current setup (2 node window failover cluster). I have 2 vms running ...
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0answers
16 views

Enable-VMResourceMetering sometimes fails in Hyper-V 2012 R2

I am trying to loop through and enable metering on all virtual machines that already do not have it enabled. It works most of the time but when it does not, I get the following unhelpful error message ...
5
votes
1answer
483 views

Running All Microsoft products vs VMWare/backup/AV for small network

Recently a company that I work for is getting IT advice to upgrade their infrastructure (for approximately 30 on prem users). We are a not-for-profit and get deep discounts on many products (...
0
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1answer
17 views

Windows Server 2012 R2 Hyper-V connection to external SQL Server not working

For almost 2 years, I've had a Hyper-V virtual machine on my local Windows 10 (formerly 8.1) machine running IIS and connecting to my production SQL Server (the Hyper-V VM is a development machine). I ...
4
votes
3answers
86 views

Hyper-V guest failover cluster file server

Environnent is full Windows Server 2012 R2. I have a Hyper-V cluster on which I host a testing fail-over cluster file server with 2 guests. Guest cluster is running and file server role installed ...
1
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2answers
35 views

Regular Disk Backup Vs. Hyper-V Backup

I have a Server 2012-r2 environment where the hard disks are backed up regularly. In the machine I also have two or three VM running at a time. I was wondering if the entire disk backup is enough to ...
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0answers
28 views

Is there a way to clone/template linux VMs on Hyper-V

I've seen how you can do it with System Center but we don't have a System Center license and there is no plans to get one. I guess I could install a trial for the 60 days just for this purpose but I ...
2
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0answers
31 views

Slow conversion of VDMK to VDI - Virtual Machine Converter 3.1

So I am trying to migrate from VMWare to Hyper-V and I'm using the MS tool Virtual Machine Converter 3.1. However, the VM conversions are going super slow. Like 2MB a second which means that a 300GB ...
4
votes
3answers
48 views

How does CSV cache behave under memory load?

We're looking at using Microsoft's CSV cache feature in our new Hyper-V 2012 R2 clusters: It's enabled by default, with 512MB allocated to each CSV. The maximum memory that can be assigned is 80%. ...
0
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1answer
36 views

Storage Pool Keeps Disconnecting After Reboot on Hyper-V

I have a File Server installed on Hyper-V with Windows Server Datacenter 2012. I created a Storage Pool in the Hyper-V Session. When I reboot the host, the server hyper-V session is in saved status. ...
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2answers
4k views

The application encountered an error while attempting to change the state of 'WindowsServer2008'

I've had a Hyper-V running Windows Server 2008 for about two years. Today I did a Save on the VM in the Hyper-V Manager and then restarted my computer. When computer restarted I went to Start this VM ...
0
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1answer
122 views

Hyper-V vm can ping host but host cannot ping Hyper-V vm?

When ping host from hyper-v VM, it works both with ipv4 or ipv6. Pinging MyHost [fe80::3549:ee49:a75c:619c%9] with 32 bytes of data: Reply from fe80::3549:ee49:a75c:619c%9: time<1ms Reply from ...
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2answers
785 views

Server 2012 R2 Hyper-V Teaming with 1 Virtual Switch vs 2 Virtual Switches

I've currently got 2 NICs going to my LAN and each one to it's own virtual switch. I've been wondering about instead of the two switches using one virtual switch and having my two LAN NICs teamed. So ...
7
votes
6answers
3k views

Is it possible to cause artificial network packet loss or latency?

I'm trying to reproduce some issues on a deployed application where the MSSQL server and client are running in two separate machines. I think there may be network issues between the two machines, so I'...
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0answers
26 views

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

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 Templates from Hyper-V 2. I have ...