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 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
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0answers
77 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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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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45 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
84 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 ...
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1answer
73 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
182 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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99 views
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1answer
457 views

Migrating windows server 2008 r2 hyper-v cluster to Server 2012 r2

I did some browsing of the existing articles regarding this question but I couldn't find it so I apologize if I simply missed it. My current setup: 1 x 2008 R2 Hyper-V Cluster 3 x Windows Server ...
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2answers
77 views

Hyper-V File Server Backup [closed]

I have some questions that I know you guys will be able to answer. I am a new IT guy for a manufacturing plant. I am new to being an IT manager having only a background in Staples Easytech and ...
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1answer
340 views

How do I configure the Hyper-V virtual switch to share internet without bridging on the host machine?

I'm setting up windows deployment services for LiteTouch Deployments in my home but what I realized was that if I take my actual LAN NIC that is connected to the internet and bridge it to the Hyper-V ...
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2answers
108 views

Creating a template in Hyper-V and what to do with

I'm using Hyper-V without System Center and trying to create "templates" for linux servers that I can then reuse as base installs. The way we have done it is by creating a machine, let's call it ...
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1answer
130 views

Hyper V Guests are not performing as expxted

I am experiencing very slow performance on a HyperV Guest that runs W2012R2. The guest is used as an Application Server that runs an ERP application. The erp application is responding very slow on ...
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1answer
403 views

iSCSI NICS, microsoft

I was wondering how microsoft solve the isue for the iSCSI NICs. I have read many articles of take two or four dedicated NICs for iSCI. How can you use it when teaming is not supported? Yes I know ...
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1answer
421 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 ...
3
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3answers
13k views

Hyper-V Manager - How do I Connect to Hyper-V Sever using different credentials

I have Hyper-V Server 2012 (free version) running on a box that is not on any domain. My Windows 8.1 laptop is on our domain. Both machines are on the same physical network. On my laptop, when I run ...
5
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1answer
2k views

Send trunk directly to vm in HyperV 2012

I'm setting up OpenBSD as a VM in HyperV 2012. It would be easier for me to just create one interface on the vm and have OpenBSD take care of setting up the vlans. Is it possible to tell HyperV to ...
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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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0answers
975 views

Applying user settings on a Windows Server 2008r2 server slow from external computers

I have 2 almost indentical environments consisting of a Windows 2008r2 server host running hyper-v and on each host I have 2 Windows Server 2008r2 guests. One of them acts as Domain Controller and 1 ...
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0answers
51 views

Background intelligent transfer with IIS server

I need help with setting my IIS server for BITS upload. i want to upload and download files from the virtual directory i have assigned to one of my websites. but i m not able to upload and download ...
5
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3answers
182 views

Converting VMware VMs to Hyper-V

Our company is looking to try out Hyper-V as a server virtualization solution so I am looking for the most efficient way to test everything out safely. My plan is to make a snapshot backup of each of ...
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0answers
362 views

Hyper-V lost network adapters

2012r2 Hyper-V Hosts: HP G5 I have a lab with two hyperv servers and a cheap iscsi device. The Hyper-V servers have 4 physical network adapters. Two are pointing to the iSCSI and the last two are on ...
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2answers
309 views

Keep remote Hyper-v hosts in manager on close

I have a windows 8.1 machine that I have installed the Hyper-v role on. We also have a couple of 2012 servers running hyper-v. I am currently managing them from my PC to make life easier. When I ...
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4answers
7k views

Windows Server 2012 R2 VM Back up fails with Insufficient storage available to create either the shadow copy storage file or other shadow copy data

This problem was first encountered on an IBM x3650 in a cluster with an IBM x3550 for failover, however this problem is reproducible on a server running HyperV not part of a cluster. When I try to ...
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2answers
648 views

Best practices for file layout in a Hyper-V server?

We've got a Hyper-V server set up, and the layout of the files is inconsistent because it was set up by several people. Here are the two different "templates" that were used: Template 1 ...
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1answer
2k views

Disable Hyper-V pausing due to low disk space

Is there a way to keep Hyper-V from pausing due to low disk space errors? I have tried some registry edits but they do not seem to be working. Is this a policy setting?
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1answer
83 views

Azure VM crashed and I recovered the VHD however cloud-init prevents me from booting it locally

One of our VM's suddenly was stuck at 100% CPU load and was unable to be reached from SSH. Rebooting did not help, nor did creating a new VM from the existing VHD. I downloaded the VHD. However, I'm ...
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2answers
4k views

How to disable 'Low Disk space' on Server 2008 and Hyper-V

My problem is showing on a Hyper-V setup, but is not strictly a Hyper-V problem. Hyper0V is exposing the symptom. I created a fixed size file on a drive in the host that almost fills the physical ...
2
votes
1answer
174 views

DHCP reservations for a range of MAC addresses

Question Our DHCP server is set up to only give IP addresses to machines that it knows about (all IPs excluded, reservations for each MAC address). Part of the address range is used for virtual ...
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2answers
2k views

Running KVM/XEN/Hyper-V VMs from a RAM disk, is this possible? Practical?

Currently I'm using ESX (v3 and v4) to test a scripted OS (Windows 2003) and application install DVD. The DVD ISO (8GB) is mounted on a 1Gbps NFS datastore and the VMDK's (20GB) are on an SSD mounted ...
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0answers
545 views

Cannot connect to Remote Desktop from difference subnet

I have a problem about Remote Desktop on Hyper-V Server 2012 R2. I cannot connect to Remote Desktop from a different subnet. The server is multihomed with two NICs, one connects to the public network ...
0
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1answer
130 views

Perfomance of SQL Server on Hyper-V VM

I decided to try server virtualization and I have not had such an experience before. I installed Hyper-V Core 2012, created a virtual machine and installed Windows Server 2008. On this VM I should ...
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1answer
52 views

Is it possible under Windows Server 2012 to run Terminal Services but have it run a VM?

I have a Windows Server 2012 box that I'd like to be able to host up to 5 TS instances on it. However, it would be ideal if those instances could actually fire up a Hyper-V VM running Windows 7. So ...
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0answers
20 views

What are you allowed to run on a Free Hyper-V 2012 host? [duplicate]

I have been looking for a "layman" version of the license for the Free Hyper-V 2012, and more precisely, what services you are allowed to run on the host. The OS itself does not prevent you from ...
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0answers
269 views

Hyper-V not getting IP Address for PXE Booting

I'm trying to get a Windows installation happening within a Hyper-V machine from a WDS Server in a VM. It's a bit of a confusing set up. I have my laptop which is running 2 VMs - One is Windows Server ...
12
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2answers
874 views

Is the gang scheduling employed by VMware a serious drawback?

I was reading some technet articles as well as this one regarding the differences between the way VMware and hyper v doing CPU scheduling. I was wondering if I could get some objective info on this. ...
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0answers
222 views

Cannot connect via RDP due to NLA error

I have one DC that also acts as a Hyper-V host. It hosts a build server, and a WDS server. Up until Daylight Savings happened a few days ago these were both working fine and I could remote in no ...
3
votes
3answers
802 views

How to find virtualization performance bottlenecks?

We have recently started moving our C++ build server(s) from real machines into VMs. (MS Hyper-V) We have some performance issues that I've currently no idea how to address. We have: Test-Box - ...
4
votes
2answers
3k views

Running an Active Directory Primary Domain Controller as a virtual machine?

Should the Active Directory PDC always be a physical machine or would it be okay to run it in a VM? What are the implications/trade offs/gotchas? As a corollary to this, what about running a physical ...
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1answer
166 views

Resizing VHDX Fixed Disk

I recently converted a Dynamic VHD disk that was 95GB in size(only uses 60GB inside the guest) and now as a fixed disk it is 170GB in size. How can I resize the newly created fixed disk to under ...
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1answer
495 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 ...
2
votes
1answer
40 views

New to virtualization, new hardware, and Server 2012 Standard w/ Hyper-v role

I run a small web hosting company and we are in the process of replacing all of our old physical servers (HP Gen4/5) with brand new hardware (HP Gen9 w/ Dual E5-2650v3's, 128G ram, 6x300G 15k 12G SAS3 ...
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0answers
198 views

SCVMM 2012 R2, single logical network both on trunk and access port

I've got a rack with a number of servers, both new and old.. The infrastructure we have uses 4 different networks for different purposes (e.g. Internet, AD, SQL and iSCSI) Newer servers have 8 NICs, ...
2
votes
1answer
1k 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
66 views

Hyper-V 2008 R2 Core Backup Single VMs

Well, after so many tries and searching I finally asking for help. I don't get the whole procedure. I want to backup single VMs of a Hyper-V 2008 R2 Core. There are 6 virtual machines running on that ...
0
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1answer
1k views

Performance issue HYPER-V : VM shows very high CPU use, but the Physical machine shows very small CPU use

My Hyper-V VM(Server2008R2, SP1) shows very high (almost 100%) CPU use when fully under heavy load (6cores from total physical 8cores, 25Gb RAM from total 32GB) - used as TS, Picture TOP right corner ...
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165 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
102 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
24 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 ...
0
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1answer
60 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 .. ...