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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Hyper-V export, Server 2012 R2, non-domain, to Samba share on Ubuntu 14.04

Fails with "Export failed for virtual machine 'hostname'". I'm trying to use Hyper-V export to back up my VMs to Samba 4.3.9-Ubuntu, to a wide-open share. Both ends are non-domain. There's some ...
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1answer
58 views

Sessionizing Windows Server 2012 R2

I have a host setup with WS12R2 and I plan to create 10 other HVMs with WS12R2 and setup services on each one and I was wondering is there a way to use the host installed OS so that when I upgrade the ...
20
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3answers
62k views

“The wait operation timed out” when running SQL Server in Hyper-V

I'm running SQL Server (2012) on a Hyper-V instance. It has plenty of resources and 25% reserved of the total resources, the VHD is placed on a very fast SSD drive for quick response times. Every now ...
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0answers
20 views

Hyper-V 2008 R2 Core system hangs on Applying computer setting for 3 hours

I have a standalone Hyper-V 2008 R2 server with 3 guests running on it. After the reboot of the physical server it hangs on "Applying computer settings" for 3 hours. After that you get a chance to ...
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3answers
41 views

why accessing my hostname doesn't work like by IP?

I'm new in microsoft server administration, please forgive me in advance I have a Hyper-V Windows Server 2012 instance with IIS enabled. I create a website on it with a custom name and a Application ...
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1answer
2k views

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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0answers
32 views

hyper-v restore to wrong virtual machine [closed]

I am using hyper-v on windows 8. I created a new virtual machine using the NEW VIRTUAL MACHINE WIZARD. I chose option to "use an existing virtual hard disk file". However I overwrote the wrong vhdx ...
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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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votes
1answer
21 views

How do I wait on a start/stop of a virtual machine in powershell

I have this powershell script that I'm calling to backup our customer's virtual machines: # Author: Vladimir Eremin # Created Date: 3/24/2015 # http://forums.veeam.com/member31097.html # ###########...
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1answer
21 views

Hyper-V: Virtual machine connected to external network has no access to it [on hold]

Setup: Windows Server 2016 Tech. Preview with enabled nested virtualization (Server 1) runs a VM with another Windows Server 2016 (Server 2) which in turn runs a Windows 10 VM (Workstation). On ...
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1answer
31 views

Hyper-V Initial Replication over LAN seems capped at 50mbps

I've ran the initial replication process over LAN multiple times with these exact two servers. When I start the initial replication, typically I see my network adapters get floored with sending at ...
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2answers
779 views

Is it possible to export a HyperV VM from Server 2012R2 and import it into HyperV on Server 2008R2?

I'm planning on migrating 2 HyperV VMs that are currently running on Windows Server 2012R2 to a new server running 2008R2. What's the best way to migrate the VMs? Will replication work between the two ...
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votes
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 ...
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1answer
832 views

Hyper-v dynamic memory client machines always use maximum memory

When I create a virtual machine in Hyper-V and set it up to use dynamic memory, the virtual machine will always use the maximum memory within the virtualized OS. Hyper-V will show the assigned memory ...
5
votes
2answers
3k views

INACCESSIBLE_BOOT_DEVICE on Hyper-V 2012 R2 virtual machines

I have a Hyper-V 2012 R2 cluster, 4 Dell PowerEdge R620 servers connected to a Dell PowerVault MD3600F storage array by means of FC connections; it's all pretty straightforward, all servers run ...
4
votes
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
25 views

Reimage a Hyper V Gen 2 / UEFI VM

So we finally bit the bullet and started using UEFI for our desktops. It works perfectly for our Hyper V images - we can create gen 2 VMs all day long. This is true until we need to reimage. How do I ...
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1answer
33 views

Hyper-V error when enabling replication

I am trying to enable replication between two servers running Windows 2012 in different data centers. I've configured them for certificate validation over https. When I attempt to enable replication ...
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vote
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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vote
2answers
26 views

Converting HyperV 2008R2 image to 2012R2

I have a HyperV 2008R2 VHD image created with a 2008R2 based template configuration being - 2G RAM, 40GB disk, 2 CPUs and 2 bridge port network interfaces. Would like to know if it is possible to ...
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votes
1answer
14 views

Issues with 2008R2 Hyper-V Snapshot [Permission Issues]

We have an issue while taking snapshot of a VM machine hosted on Hyper-V host. The Hyper-V host is a Windows 2008R2 Sp1 Ent edition server and we have couple of VMs hosted on them. Whenever I try to ...
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0answers
26 views

Server 2008 R2 Hyper-V VM blinking curser

After installing MS patches, my VM on a Server 2008 R2 Hyper-V boots with a blinking curser. I suspect to have issues with the boot and need to run a boot repair. However, I am unable to boot from the ...
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2answers
25 views

Deleting a Hyper-V checkpoint restores unwanted state

I had hoped that applying and then deleting a CheckPoint would result in all changes since the CheckPoint being discarded, but unfortunately this has proved to not be the case. Here's what I did with ...
2
votes
0answers
25 views

Rebuilding VHD RAID array

We have a Dell PowerEdge R420 with a PERC H710 mini RAID controller card. The server has six physical disks split over two arrays; one RAID-1 array for the OS and one RAID-10 array for the data. This ...
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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
19 views

Migrate a ubuntu VM on virsh to a hyperv 2012 server

I have an ubuntu 13.04 server virtual machine on an ubuntu server 13.04 running libvirt 1.1.1. I want to migrate this to a hyper-v 2012 R2 server. I'm not terrible familiar with linux, and would ...
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votes
2answers
28 views

What to do to enable SSH service on CentOS hosted in local Hyper-V? [closed]

I googled a lot but didn't help. So, I have another PC in my local network that has Windows Server 2012 R2. I enabled Hyper-V and initiated CentOS 7.2 and configured SSH server. The thing is I want to ...
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votes
1answer
17 views

R1Soft shows server type as “Virtual” but server is physical

I've added my server, deployed the backup agent, rebooted my server and it shows " Server Type: Virtual (Hyper V) ". But my server is a physical server, running Hyper-V. As my license is for a ...
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0answers
40 views

“Hyper-V encountered an error trying to access an object on computer '<remote hyper-v server' because the object was not found.”

Setting up a Windows 8.1 Enterprise VM with Hyper-V tools installed to manage our Hyper-V Servers. I have it working with one hypervisor already, but on this one I get the above error. I have followed ...
9
votes
2answers
34k views

Running Mac OS X on Hyper-V

I have my workstation setup with a Windows Server 2008 running Hyper-V. Now I really want to install OS X for testing purposes. Have anyone had any success running Mac OS X in an Hyper-V environment? ...
0
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1answer
22 views

hyper-v accidentally removed snapshot

I (very stupidly) moved a Hyper-V snapshot via Windows explorer and then, of course the VM server would not boot. I moved it back and then removed the snapshot via Hyper-V so there are no snapshots ...
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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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votes
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
31 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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votes
2answers
42 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 ...
0
votes
1answer
181 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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vote
0answers
70 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
44 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 ...
0
votes
1answer
34 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 ...
0
votes
0answers
18 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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votes
0answers
33 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 ...
5
votes
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 ...
2
votes
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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votes
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 "...
0
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0answers
21 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
votes
1answer
35 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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0answers
18 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 ...
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votes
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
43 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
vote
1answer
29 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 ...