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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191 views

Hyper-V VMs keep losing network connection

We had a major power loss in our server room two days ago and several Cisco Nexus 2232PP FEX devices went down. We were able to get everything back online, but since that event we've been experiencing ...
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1answer
111 views

Super-power PC for many users - Server (2008 R2) on Hyper-V can not use full Machine hardware resources [closed]

Desription of problem changed : how to make sure, that my Hyper-V is using all my hardware resources, and if it is using, what is the bottleneck of the system, when discovering performance issues? - ...
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0answers
25 views

How can I create an external switch but refrain to use the external dhcp in Hyper V?

The requirement might seem strange. I have an organisational network (external network), but I desire to create a own private network of VMs in Hyper-v with its own domain and DHCP server(which runs ...
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0answers
125 views

Unable to create Hyper-V VM on SMB share

I'm trying to create a VM on Hyper-V 2012 R2 server and I'm getting this error: The server encountered an error while creating VMNAME The Operation failed Failed to create external configuration ...
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0answers
64 views

stop rdp to deactivation session after close

I try to run VNC Server on my Server2012 R2 (VM on HyperV Host). I login via RDP (mstsc.exe) to a Windows Server 2012 R2. Connect via real VNC to the Server also. After closing the Windows RDP ...
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1answer
68 views

tomcat-webapp not accessible via port after windows-update

we are running 4 Virtual Machines on a MS HyperV Host. On one of the VMs (192.168.50.15) we have multiple Tomcat-Webapps on separate ports - 9010: Jenkins - 9020: Atlassian Jira - 9030: Wiki .. ...
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0answers
228 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 ...
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0answers
285 views

Conflict between Nvidia Grid K2 & integrated graphics on Supermicro VDI?

My office has a Supermicro SYS-1027GR-TR2-2NVK2 VDI server with dual Nvidia GRID K2 cards running Windows Server 2012 R2 & RemoteFX. We are an architectural firm and use 3D graphics software. ...
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1k views

Convert VHD to use on QEMU KVM

I try to convert a .vhd file (VPC) and get this error. I tried different .vhd files without success. I tried also with a fresh exported VHD with disk2vhd and backup Hyper-V .vhd. qemu-img convert -f ...
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0answers
200 views

Convert KVM VM with multiple drives to Hyper-V (or somehow clone into a single drive system?)

I know this is going to sound weird. I have a VM running under KVM on Centos 6 that ran out of disk space, so 2 qcow2 drives were added, with one of them extending the vg_svn-lv_root LVM VG, and the ...
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1answer
143 views

NTP offset between PDCe and DC (Both Hyper-V)

I'm facing an issue, here is the context: 1 PDCe (192.168.1.3 and Hyper-V virtualized) is set as NTP server, its source for time is VM IC Time Synchronization. 1 DC (Hyper-V virtualized) is ...
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111 views

Linux on Hyper-v network errors

I have Hyper-V 2012 on HP DL320 G6 I've installed debian 7 i386 on, added two network adapters and configured it as router for my local network. I found out that sometimes wan interface generate ...
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1answer
164 views

Is it possible to bridge/join two or more vritual (Hyper-V) switches with the same address range over VPN?

I have several Hyper-V servers which are not in the same LAN. On every server are several Hyper-V guest VMs which are connected via an internal virtual switch. Now I want to to connect these two ...
3
votes
1answer
318 views

Hyper-V Manager crashes when connceting to remote Hyper-V Server

I am using Windows 8.1 and have Server Manager installed. I've added one of our servers (Server 2012 Standard) to Server Manager, and it connects just fine (Manageability shows "Online" and I can see ...
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1answer
240 views

How to configure Windows Hyper-V server with Windows Storage Spaces

I creating a Hyper-V home setup. I have a single Machine (haswell CPU, 16GB ram, and SSD) Storage is attached as DAS (5 Disk USB 3.0 enclosure) I want that machine to be a Hyper-V host (Windows Std. ...
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0answers
145 views

Oracle Linux 6.3 Kernel Panic on Boot after Converting from VMware VMDK to Hyper-V 2012 VHD

I converted a system running Oracle Linux 6.3 from a VMware VMDK to Hyper-V 2012 R2 VHD and now upon boot I'm receiving the error below: Kernel panic - not syncing: Attempted to kill init! Pid: 1, ...
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2answers
483 views

How to copy/export live domain controllers to a test environment?

Let me explain out scenario: We have a totally virtualized live production system running all the production VMs in a Microsoft Failover cluster. The interesting VMs for this questions are the Main ...
3
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1answer
414 views

Backup Hyper-V VMs using wbadmin and iSCSI on Windows Server 2012

I am trying to setup a backup system at my work. We have an Windows 2012 environment with some VMs. We have a SAN and I tried do backups on a shared folder but, because of some incompatibilities with ...
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1answer
97 views

Stand alone test domain controller and internet access

I've created a virtual machine (the VM is running Windows Server 2012 R2) using Hyper-V on my physical Windows 8.1 box for the purpose of testing Dynamics CRM 2013. This virtual machine is the domain ...
2
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1answer
2k views

Compacting VHD disk images when they are dynamic

I have a Hyper-V server running on WS2012. I have a Windows 7 running as a dynamic disk. I delete files and more from within to attempt to save disk space and reduce the size. However, the size does ...
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0answers
51 views

TFS Running on VHD - How to split across multiple drives

I have a TFS instance which is running on a Hyper-V VHD. The VHD is now getting to the stage where it's reaching the size of the physical hard drive in the server. I will therefore buy another hard ...
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0answers
198 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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0answers
86 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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4answers
661 views

Cannot start Virtual Machine

I am trying to setup a Virtual Server using the Windows Server 2008 Hyper-V but each time, when I click start, after creating the Server, I get an error: An error occurred while attempting to start ...
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1answer
293 views

Slow Performance on Exported Hyper-V VMs

I have an Windows Server 2012 environment with Hyper-V virtualization. My VMs were running very well but my machine was running low on disk space. After buying an new HDD and installing it on my ...
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1answer
441 views

Hyper-V dynamic ram not working with Debian

I've a Windows Server 2012 R2 based Hyper-V host with Windows Server 2012 R2 guest VMs and also Debian 7.6 based VMs. The dynamic RAM is working on Windows guests fine. But on Linux its not and the VM ...
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1answer
4k views

Hyper-V VM doesn't boot off SCSI hard drive

I've converted a VMWare VMDK to a VHDX. The guest is a Windows 8.1 VM. When this is attached to a generation-1 Hyper-V VM as an IDE drive, it boots up fine. When the same VHDX is attached to a ...
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1answer
593 views

Event ID 12240 on Windows Server 2012

I have a Windows Server 2012 and some virtual machines in it. Since last week some error events appears hourly on event viewer saying that the system cannot find a remote VHD file. This VHD file is ...
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1answer
408 views

Hyper-V multiple virtual processors don't show up in virtual machine

I'm running Hyper-V on Windows 8.1 x64. I've created a Windows 8.1 x64 Gen2 virtual machine using all the default settings, except that I changed the "Number of virtual processors" from 1 to 2. When ...
2
votes
1answer
473 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
124 views

Unable to connect to CNCYDEV on port 5252. No connection could be made because the target machine actively refused it

I have a server that uses K2 (www.k2.com), SQL Server, Sharepoint 2010 and many other products. When using K2, I am experiencing the error stated in the title of this question. I contacted K2 Support ...
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0answers
299 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 ...
2
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2answers
2k views

CentOS 7 and Hyper-V

I'm trying to install CentOS 7 using Hyper-V and it's failing with the following error message: tsc: Fast TSC calibration failed PCI: Fatal: No config space access function found i8042: No controller ...
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1answer
642 views

Windows Server 2012 R2 Standard + Essentials Setup for Small Office [duplicate]

We want to setup a "small" server for on of our offices (8 Client Computers, local Domain not linked). We need to have an Exchange Server. Unfortunately we cannot use SBS since its support is running ...
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0answers
89 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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0answers
183 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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votes
2answers
4k views

Cannot ping a VM from a Hyper-V host

I am facing a weird situation in my network environment. My infrastructure looks like this: I have a D-LINK DIR-635 acting as my default gateway (192.168.0.1) A physical Windows 2012 Server ...
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2answers
1k views

SCVMM 2012 R2 - Installing Virtual Switch Fails with Error 2916

So I've been attempting to teach myself SCVMM 2012 and Hyper-V Server 2012 R2, and I seem to have hit a snag. I've connected my Hyper-V Host to SCVMM 2012 successfully, and created a logical network, ...
0
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1answer
466 views

Issue installing server 2008R2 on hyper-v on a 2012 host

I am installing a 2008R2 standard edition server on a hyper-v running on a server 2012R2 standard. Every time I install the server I am getting the following error, followed by a restart which causes ...
2
votes
0answers
62 views

How do I prevent directed broadcast packets in Hyper-V using virtual network adapter

When I connect two physical subnets by using a Cisco Router, I can configure the router to disable directed broadcasts (that could be used for example to send Magic packets for waking up Computers ...
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0answers
1k views

How can I manage Hyper-V Server 2012 R2 from Windows 7 with PowerShell

I am tearing my hair out at the moment trying to do this. Just a couple of things to clear up: I have Windows Hyper-V Server 2012 R2 freshly downloaded and Remote Administration enabled; I have a ...
2
votes
1answer
278 views

Problems setting Hyper-V permissions

I am using a Windows 2012 Hyper-V server to host some test PCs. Our support personnel should be able to take snapshots of these machines and roll a test machine back to a specific snapshot, but they ...
3
votes
1answer
950 views

How to move Hyper-V virtual machines to Azure with minimal impact?

My company is in the process of transitioning some of its on-premises services to the Microsoft cloud; some of them are being replaced altogether by hosted services (Exchange, SharePoint); some other ...
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2answers
136 views

Migrating Hyper-V VM's to CentOS 6

I have tried to search this around in google, but I haven't actually found anyone migrating from Hyper-V (Windows) to CentOS 6, only the other way around. So, I was wondering if there are any pointers ...
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2answers
1k views

Can PXE boot of Hyper-V VMs be disabled?

Hyper-V virtual machines have the ability to PXE boot. Obviously, PXE boot raises some security concerns. The problem is, unlike a typical physical machine's firmware, there isn't an obvious way to ...
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2answers
206 views

New 2012r2 hyper-v cluster, GUI or server core? [closed]

I have not worked with a Server Core install before. We will soon be moving from old hardware running Server 2012 (with GUI) for our hyper-v cluster to new hardware and plan to install Server 2012r2. ...
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1answer
107 views

Hyper-V 2012R2 Private Vlans and Cisco Swith

I have a trouble with configuration of Cisco Catalyst 3850 (WS-C3850-24T-E). Hyper-V server (2012R2) is connected to it. My issue is to separate the virtual machines on the Layer 2 Level. The virtual ...
2
votes
1answer
185 views

Protect new VHDX in VM with Microsoft DPM

I have a MS DPM 2012 R2 (Update 3) environment set up, backing up a Hyper-V 2012 R2 virtual machine from a 2-node cluster. There are about 90 recovery points for this Hyper-V VM already. I have now ...
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0answers
859 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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1answer
539 views

Windows 2012 R2 Hyper-V vs Datacenter edition

We need to deploy a Windows 2012 R2 Hyper-V cluster with 4 physical server. We going to use Datacenter edition licencing, but consider installing the Hyper-V edition on the serveres. Just to install ...