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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HyperV External Switch Multiple VMs

I'm quite new to hyperv and I am having problems setting up network access for my VMs. The host has two physical network ports and I've assigned one to an external virtual switch. I've then setup two ...
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225 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
129 views

Trusted SQL 2008 Hyper-v connection to a IIS 7 Hyper-v & web.config's

I have 2 hyper-v machines SQL 2008 Database VM IIS 7 VM I have setup a private virtual network between the 2 machines. I can browse to one machines and log into it with that machines Admin ...
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1answer
824 views

How to change Hyper-V VM network settings via WMI?

I am not sure where to post this question whether at programmers.stackoverflow.com or here. So please forgive this if i am at the wrong place. My question is: How to set Subnet Mask , DNS address ...
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1answer
39 views

2012R2 Cluster - Add host without downtime

Essentially just want to confirm my current thoughts - have a 3-node 2012R2 Cluster. We are replacing two of the hosts. At the point when you add a new host to the cluster and run the validation, the ...
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3answers
602 views

SCVMM 2012 R2 - unable to connect to VM console

I've added a Server 2012 R2 host to VMM 2012 R2, and created a VM on it. When I right-click on the VM and try to connect to the console, I get: "This computer can't connect to the remote computer. ...
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1answer
501 views

Hyper-V offline migration between AMD and Intel Processors

I have an existing 3 server hyperv cluster using Dell R715 AMD machines. Now I'm planning out what to do if our server room is damaged in a disaster. The plan is to have a single, fairly powerful, ...
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1answer
80 views

Transfer physical Windows Server 2008R2 licence to Hyper-V server [duplicate]

I have a plan to upgrade my 2008R2 Standard Edition to 2012R2 Standard Edition, and then virtualize them with Hyper-V 2012R2. Is it possible to upgrade from Windows Server 2008R2 Standard Edition to ...
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1answer
56 views

Physical processor to virtual processor scaling

If I have a Windows Server 2012R2 with Hyper-V role installed, and the configuration is: 4 processors, Intel Xeon E5-4620v2 and each one is 8 cores/16 threads, can I utilize enough power for ...
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1answer
34 views

One SAN connecting to Hyper-V and VMware [closed]

my customer currently has two hypervisor types in place - using VMware for Linux systems and Hyper-V for Windows. They currently have different storage infra for each of these platforms which cost ...
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3answers
931 views

How can I automate and run post installation commands in Azure Virtual Machines?

I need to deploy Azure hosts and configure them according to a pre-defined script once they are loaded. Is there any example, guidance,or tutorial on how to modify an Azure VM once the instance is ...
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2answers
1k views

Adding virtual NIC to HyperV VMs killed my network speed

I have a pretty simple configuration: Windows Server 2012 Hyper V Host, with two VMs (both Server 2012), one for IIS, one for SQL Server. They're all connecting through the physical NIC Last night I ...
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95 views

Cant run WPF applications on Hyper-V Server 2008 r2 SP1 (core)

i'm trying to run one of my WPF application in a Hyper-V Server 2008 r2 sp1 but it crashes on startup. I created my application with .net 4.0 and looks like it crashes before my first line of code is ...
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3answers
96 views

Server 2008 R2 freezes while copying data from network

Running a fresh installed Server 2008 R2 Standard (x64) with SP1 as a single HyperV host. This server has to replace an "old" 2008 R2 with a couple of HyperV VMs stored. After shutting all guest ...
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1answer
66 views

Virtual machines on a SAN and a failover cluster between two physical servers

Say I am setting up the following environment: -two physical servers each with Windows Server 2012 R2 Datacenter. -a SAN -a failover cluster between the two servers The physical servers won't be ...
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16 views

Hyper-V Authorization Manager

I want to manage permissions on a hyper-v host with non-administrator users. i used this https://technet.microsoft.com/en-us/library/dd283076%28v=ws.10%29.aspx I set up a new role in azman.msc with ...
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2answers
343 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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2answers
1k views

Exporting a VM running as a Domain Controller

There is a Microsoft KB article that talks about best practices for running a DC on a VM. One of the notes is "Do not use the Export feature on a virtual machine that is running a domain controller". ...
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2answers
2k views

Unidentified Network for HyperV Internal Switch

I am trying to setup a HyperV internal switch for the guest OS on a Windows Server 2012 host. After creating the new Internal Switch through Virtual Switch Manager, I can see the virtual adapter under ...
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2answers
4k views

Hyper-V - Creating a large fixed disk - EXTREMELY Slow

Hey everyone, after posting another question here, it seems I have to create a fixed disk in order to get one 700GB. I have shut down the machine (which basically has nothing on it), and gone to ...
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1answer
109 views

Backup Hyper-V To Google Drive?

I was thinking about backing up a Hyper-V host to the cloud and a potentially crazy idea came to mind. With Google Drive, you can get 1TB of storage for 2 bucks a month. This would be more than ...
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1answer
43 views

VHD to physical drive with no host os

I have installed windows server 2012 r2 with exchange 2010 on it on virtual machine (Hyper-V) I need to move VHD to physical drive. I know that windows can boot VHD images, but i need to move OS ...
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2answers
209 views

Server upgrade to virtual environment

Hello guys I hope that you are well with everything that matters to you including health, family, finance and everything else. We are having a big project that initially includes • Active Directory ...
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1answer
75 views

How do you change host management credentials for a cluster in System Center Virtual Machine Manager?

How do you change the Host Management Credentials in System Center Virtual Machine Manager for servers in a cluster? If I right click on the server and go to properties I can see the Run As account ...
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3answers
714 views

Best practice to disable SpeedStep for Hyper-V hosts?

I'm analyzing a problem where performance of CPU-bound workloads inside virtual machines often (not always) is way below what we would expect based on the underlying hardware. We're using Hyper-V on ...
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2answers
220 views

Running a Windows Server 2012 Domain Controller in Hyper-V

I attempted to install Windows Server 2012 on a Dell PowerEdge 2850 and found out that the server may not support Server 2012. Is there any downside to running a Windows Server 2012 domain controller ...
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1answer
177 views

Major Issues with Sysprep, server now has a installation prompt

So yesterday I asked this question: How to create a single image of Windows Server 2008 R2 to use on a Azure Virtual machine I was told by multiple sources I need to run sysprep against the machine, ...
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1answer
54 views

Why Hyper v 2012 server does not show up MMC option

I have remotely logged on to a Hyper V 2012 server which is in domain from a windows 2012 server through remote desktop connection and after login the first thing which was configured to run ...
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1answer
57 views

How do I properly configure host server net adapters when using Hyper-V?

I am converting a number of physical servers to virtual ones, and I have a question regarding configuring the physical adapters on the host server. I am new to virtual machines, and have a nagging ...
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1answer
32 views

How to find how a port has been forwarded from main server to hypver v vm

I must appologise for being a novice in server administration but I have somehow been given the responsibility and I have spent a long time reading up on this. The issue I have is that the previous ...
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2answers
4k views

hyper-v could not initialize memory there is not enough space on the disk (0x80070070)‎

I have created a virtual machine on a Hyper-V server, Dell PowerEdge with 24 Gb of RAM. I want to have four VMs with 2048 Mb of RAM each. Originally, I created this one (SV-YAMATO) with 512 Mb of RAM, ...
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2answers
44 views

Assigning virtual processors to a VM

I'm having some slight confusion assigning virtual processors to a VM in Hyper-V, possibly due to outdated information on the internet. We have decided to virtualise our servers due to bringing in ...
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1answer
617 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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3answers
18k views

Guest OS install from Physical CD/DVD Hyper-v 2012 R2

I have been looking around if it's possible to install a Guest OS on Hyper-V 2012. The only ways i see to install guest OS is by mounting an ISO. Is hyper-v able to access the Host physical CD/DVD at ...
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1answer
51 views

DPM 2012 virtual server stuck backing up

I have a DPM 2012 server which has a virtual server stuck 'Backing up' and cannot be started. As the virtual server lives on a host with a number of other virtual servers the only way we have fixed ...
0
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2answers
242 views

Installing Hyper-V 2012 R2 to USB gives INACCESSIBLE_BOOT_DEVICE error

I have created a bootable USB flash drive of Windows Hyper-V Server 2012 R2 Core following the guides here and here. When I boot my desktop PC from the USB drive it boots up fine (after a while) and I ...
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5answers
250 views

Can you use powershell to “spin up” new VM instances

Learning powershell and working on creating VMs with Hyper-v. I was wondering is there a way or an ideal way to go about installing/setting up guest operating systems as well with it? So far the only ...
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0answers
77 views

Windows 2012 R2 Hyper-V cluster without shared hardware

I have several servers with local SATA/SAS RAID arrays. I would like to run there virtual machines with some level of automated failover - sync VM to secondary node in 1 minute interval and automated ...
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1answer
38 views

Possible to create a Hyper-V VM with a unique IP address? What are my options? [closed]

I'm testing IP throttling on my site and want to spawn a VM that has a different IP address from the one on my local machine. This seems impossible but I want to ask the community - is the only way to ...
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0answers
273 views

Convert Hyper-V linux machine to Gen 2

Is there any way I can easily (and without reinstalling) convert a Linux Hyper-V (gen 1) VM to a gen2 one? I know the Convert-VMGeneration cmdlet for PowerShell (this one: ...
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1answer
404 views

Hyper-V: CentOS 6.6 guest with Dynamic Memory - Should I see memory decrease from guest OS?

I'm testing CentOS 6.6 in Hyper-V (W2K12R2) with dynamic memory. I set Startup and Minimum Memory to 4096MB, Maximum Memory to 16384MB. 20% buffer size. After boot I can see it's memory size as ...
0
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1answer
66 views

Adding hosts to existing 2012r2 Hyper-V cluster

Situation: Two separate clusters, server 2012 and server 2012r2 In process of disassembling the 2012 cluster and upgrading those hosts to 2012r2 Prior to this I must move all of the guests to the ...
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1answer
98 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
0answers
84 views

Hyper-V Replica Capacity Planner stuck getting VM information

I'm trying to use the Capacity Planner for Hyper-V Replica tool to estimate requirements for a replica site. It keeps getting stuck "Getting the VM and VHD from primary site, this can take upto ...
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votes
7answers
13k views

Hyper-V Machine drifts time all over, even with NTP

Resolved The problem was Hyper-V on that machine. I removed Hyper-V, installed VMware Server, ran the same VM. Time sync issues went away (< 100ms difference after a day). My setup is like this: ...
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50 views

Why does Hyper V differs in authentication methods for live-migration and replication

Hyper-V provides different authentication methods for replication and live migration (2012 R2 based). Live Migration is using CredSSP and Kerberos and replication Kerberos or PKI-based authentication. ...
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1answer
115 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 ...
2
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1answer
78 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
246 views

Windows 2012R2 hyper-v guest diskless - boot from iscsi guide?

I am attempting to build a generation 2 W2012R2 hyper-v server guest that, configured with no disk or vhd , will select it's iscsi o/s disk via Microsoft dhcp and boot Windows 2012 R2. Note that I ...
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0answers
113 views