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Windows 10 enterprise ltsb Hyper-v virtual: switch not working, Cannot uninstall hyper-v.

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HI all

I cannot get hyper-v virtual swich up and running .  ( It ran for a day or so, and then maybe some update made it malfunction)

Switch telling that I should "attach cable" ( or the like :-< )

version : Windows 10 Enterprise 2015 LTSB

I've tried to uninstall through -> control-panel -> programs... -> windows programs  ->  uncheck hyper-v 

This seems to do   ( my guess)
1:  an uninstall  
and then to my surprise 
2:  an install of hyper-v 
or maybe it just fails. 

Because after a reboot .. hyper-v is still alive and kicking ... to my utter frustration. 

I could throw away windows 10 , but I find that this would be a terrible waste of work ... so I'll ask here first.


Unable to connect to Hyper-V Child Partitions over Network

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I'm trying to make the switch from ESXi over to Hyper-V. I've just set up my first Hyper-V host, and I've hit an issue that's had me stumped for a couple of days.  I can connect to the parent partition successfully, and connect from it to the rest of the network.  However, I can't connect to the guest partitions over the network at all.  The guest partitions can connect to the rest of the network OK, (can ping other servers, and joined the domain successfully), but no matter what, I can't seem to connect into them from the LAN (ping, or RDP).

My Hyper-V host has two Physical NICs, one of which I've dedicated to storage (via a separate, physical switch), and one which connects to the LAN.  Not ideal, I know, but it's what I have to work with, and it's the same setup as I've used successfully in ESXi for several years.

Storage is working fine over an SMB3 share, but I can't get the LAN interface to work.  I'm trying to follow the recommended configuration, as shown in Figure 1 (Source), but with VLAN 11 for the parent partition, and VLANS 11, 21, 31, 32 and a couple of others for Guest partitions.  I have created an external Virtual Switch, bound to the Physical NIC which connects to the LAN, which has the VLAN ID for the host operating system set as 11.  I've created a couple of VM's, with their virtual NIC's connected to this virtual switch, and the VLAN ID's 11 and 21.  The physical switch port that the LAN-facing interface is connected to is in trunking mode, and is a member of all the necessary VLANs.  I've verified that VLANs are supported enabled in the NIC's properties.

I'm completely out of ideas at this point, as far as I can see, everything should be working. Are there any suggestions or ideas I've not tried yet?

Many thanks.

Hyper V high availability and BSOD handling

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Hi there

One of my customer is interested in a scanerio on Hyper V environment to be handled for fault tolerance. He has VMs running in a clustered host environment using Hyper V Windows 2012 server OS. What they are expecting is that when a VM1 goes BSOD for some reason would it be possible for us to do a Live/Quick Migration with the Hyper V HA/FT solution. They are looking for a solution which will allow the VM2 on the other host to come up with record and play and make sure the high availability is met. Is that a possible solution. If so can anyone please point me to article or settings to be done in the Hyper V environment.

Thanks

John


John

Hyper-V 2012 SP1 List VMQ Settings for all VM's on multiple hosts

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Hi,

I'm trying to list the VMQ settings for all VM's across our Hyper-V 2012 Cluster.  I am able to list Adapter settings using:

Get-VMNetworkAdapter -ComputerName <string> -All

But it does not show whether VMQ is enabled.  I have been able to list the settings for the Host but not for the VM's

Has anyone any idea if this is possible? Unfortunately my powershell knowledge is a work in progress!

Thanks,

Sam


Server 2012 R2 + Hyper V role - BSOD (bxnd60a.sys)

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First off, apologies if this is in the wrong place!

I have a Dell PowerEdge r510 on which runs Windows Server 2012 R2. Its running AD/DNS and Hyper V.

I am getting repetitive BSOD events citing DRIVER_IRQL NOT LESS OR EQUAL (bxnd60a.sys). I have tried updating all network cards  (Broadcom BCM6716C & BCM5709 NetXtreme II GigE) to the latest available version on the Dell R510's downloads page.

What I've noticed is the BSOD events appear to be linked to Hyper V, if I stop all VMs running in Hyper V the BSOD event doesn't seem to occur. Starting even one VM can cause the BSOD, although not necessarily straight away. It could work for hours before going down or it could go almost immediately.

The event viewer gives the following;

EventData
BugcheckCode209
BugcheckParameter10xc
BugcheckParameter20x2
BugcheckParameter30x0
BugcheckParameter40xfffff8016eb6dfc6
SleepInProgress0
PowerButtonTimestamp0
BootAppStatus0

I've looked in Dell OpenManage and it shows a completely clean bill of health, all controller drivers are up to date etc.

I am really at a loss as to how to troubleshoot this. If I can't work it forward I think I'm going to have to replace Hyper V with ESXi to see if I can get a more stable physical host, but I really don't want to :(

Thanks in advance!

Adam

Can't Delete Mystery Virtual Network Adapter with No Name in Hyper-V 2012 R2

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We have a  2012 R2 2 node Hyper-V failover cluster and have a node with mystery network adapter I can't get rid of.  I suspect it is a remnant from when we had to remove and replace some of the adapters when we updated some Intel NIC drivers.

  • Every once and awhile, the adapter will show up disabled in the Network Connections list with the same name (CSV) as an existing vNIC
  • If I refresh the Network Connections window, it disappears, however, running a get-netadapter in PowerShell, it shows up in the list with a blank name
  • In Device Manager, it is shown, along with a mystery "Virtual Switch Extension Adapter" (not even sure what that is)

Since it has a blank name, I can't figure out how I would delete it using PowerShell.  If I try to uninstall it in Device Manager, it won't uninstall (probably because it's virtual.)

If anyone has any advice how to get rid of this it would be great.

Thanks!


George Moore

Running previous versions of Windows on WS 2012 R2 Datacenter Edition

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Hi everyone.

My company is about to acquire some licenses of Windows Server 2012 R2 Datacenter Edition to run on our virtualized environment. Though it isn't Hyper-V (we're using another hypervisor), we're aware that we can run unlimited instances for each license (2 physical processors). But my question is: do we gain rights to run previous versions of Windows Server using these licenses?

I hope that was clear enough.

Thanks!

Windows Server 2012 VM Intermittent Ping Issue

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I have recently setup my first Windows 2012 Server R1 on VMWARE 5.5.  I have several other Server 2008 VM's that work perfectly. Issue I have is this server will not respond to ping requests for periods of close to 2 hours then for 12-14 minutes ping requests work fine. Any help greatly appreciated. Its driving me nuts..


NIC Team won't work with HyperV Switch

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Hi Everyone,

I have a server setup in my test lab with Windows Server 2012R2.  I have successfully created a switch independent NIC team with 3 of my 4 available network cards.  This team gets a DHCP address no problem.  The 4th network port I have by itself as a management port so I can gain access to the Host.  I have also installed HyperV and created one Windows Server 2012 VM.  When I go in to the HyperV virtual switch manager and create the Virtual Switch, I bind it to the Microsoft Multiplexor blah blah adapter (AKA the NIC Team).  As soon as I connect it to the NIC Team I lose network access to the Team and the Virtual Switch.  To complicate matters even more, I can connect the virtual switch to my management port and the switch works fine and the Team comes back up as well.  I have no clue what I'm doing wrong, but someone please help.  I know both my NIC Team and Virtual Switch work correctly independently, but they won't work together.

The way the Virtual Switch and NIC Team are configured:

  1. Virtual switch is set as external and I have tried both creating it in powershell or GUI and allowing the host OS and not allowing the host OS.
  2. The NIC team is set up as Switch Independent and I have tried Dynamic, Address Hash, and Hyper-V Port load balancing modes.

Thanks for any help or insights!

Hyper-V PXE boot times out. Physical PCs PXE boot without problem

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I volunteer at a Community Center that offers PCs for public use. There’s a single server (Server 2012 R2) and 20 PCs (W7 and W8.1) in the domain.

To support PXE boot and OS deployment, I'm using WDS and MDT 2013 (not MDT 2013 U1) on the server. All the PCs PXE boot and deploy without problem. But Hyper-V PXE boot times-out / no-response (have tried both Gen1 and Gen2 VMs). I believe (not 100% certain) PXE boots did work sometime past. But not working when i recently used Hyper-V again

At this point I removed then re-installed Hyper-V. I re-created VMs: Gen1 with a legacy network adapter and Gen2 with secure boot turned off. Both VMs get PXE timeouts.

Since PCs PXE boot without problem I’m guessing the Hyper-V PXE problem is probably in WDS or networking? IDK. Here’s a summary of config information. The zip file provided includes some snapshots and an ipconfig /all so you can also verify settings. Any help/advice appreciated.

  • WDS server is running
  • WDS PXE set to respond to all clients
  • WDS shows no pending devices
  • Network –Virtual switch is created. Server only has one network adapter. ipconfigbelow with tunnel info removed but full output is in the zip
  • VMS – Gen1 and Gen2. Gen1 has a legacy network adapter. Gen2 has secure boot turned off

Server Config Info.zip

Microsoft Windows [Version 6.3.9600]
(c) 2013 Microsoft Corporation. All rights reserved.

C:\Windows\system32>ipconfig /all

Windows IP Configuration

   Host Name . . . . . . . . . . . . : CTC-SERVER-2
   Primary Dns Suffix  . . . . . . . : cohcybercenter.local
   Node Type . . . . . . . . . . . . : Hybrid
   IP Routing Enabled. . . . . . . . : No
   WINS Proxy Enabled. . . . . . . . : No
   DNS Suffix Search List. . . . . . : cohcybercenter.local

Ethernet adapter vEthernet (Virtual Network Switch - Bridged):

   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Hyper-V Virtual Ethernet Adapter #2
   Physical Address. . . . . . . . . : 9C-8E-99-57-F3-88
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes
   Link-local IPv6 Address . . . . . : fe80::b865:9285:1107:5c13%29(Preferred)
   IPv4 Address. . . . . . . . . . . : 192.168.1.3(Preferred)
   Subnet Mask . . . . . . . . . . . : 255.255.255.0
   Default Gateway . . . . . . . . . : 192.168.1.1
   DHCPv6 IAID . . . . . . . . . . . : 496799385
   DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1C-9F-B0-1F-9C-8E-99-57-F3-89

   DNS Servers . . . . . . . . . . . : 127.0.0.1
   NetBIOS over Tcpip. . . . . . . . : Enabled

Ethernet adapter Ethernet 3:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet #3
   Physical Address. . . . . . . . . : 9C-8E-99-57-F3-8B
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet 2:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet #2
   Physical Address. . . . . . . . . : 9C-8E-99-57-F3-8A
   DHCP Enabled. . . . . . . . . . . : Yes
   Autoconfiguration Enabled . . . . : Yes

Ethernet adapter Ethernet:

   Media State . . . . . . . . . . . : Media disconnected
   Connection-specific DNS Suffix  . :
   Description . . . . . . . . . . . : Broadcom NetXtreme Gigabit Ethernet
   Physical Address. . . . . . . . . : 9C-8E-99-57-F3-89
   DHCP Enabled. . . . . . . . . . . : No
   Autoconfiguration Enabled . . . . : Yes





SSMS.EXE 100% CPU

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We have more thn 1 2012 R2 hyper-v server. Only on 1 are we experiencing 100% CPU with ssms.exe process which slows other VM's way down. The way that i understand, smss.exe is there because we use dynamic memory. Is that why the smss.exe process is there? We use dynamic memory on all our hyper-v servers and i dont see sssms.exe on any other server much less using 100% of the CPU. All the hyper-v servers are hyper-v servers only meaning the host does nothing but hyper-v. They all have available memory both on the host. Seems there are 2 ssms.exe processes:

I can kill the process but it will eventually come back eating up 100% CPU and i have rebooted the physical server. When i kill the 98% process, the vm's work fine and everything appears to work but why is it there?


cannot start virtual machine

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Hello

I am unable to start a newly created VM in hyper-v using Win Svr 2008 R2.

The issues I am having are similar to thread:

https://social.technet.microsoft.com/Forums/windowsserver/en-US/b26fe762-62eb-48ec-b538-ddeed61e1fae/after-upgrading-to-windows-2008-r2-cant-start-vms?forum=windowsserver2008r2virtualization

This is a locked thread so I can't respond to it.

Help is much appreciated.

I have tried to implement all the proposed fixes in the above thread but with no success. Now I'm lost, I have very little knowledge with VMs. PLEASE HELP! :) It's driving me nuts!

kind regards

Paul

Hypervisor disables Sleep and Hibernate on Windows Server 2012R2! Why? How to solve?

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Hi,

according to the official documentation of Microsoft, Hyper-V does not block Sleep and Hibernate on Windows Server 2012 and Windows Server 2012 R2.

From powercfg I get the following output:

The following sleep states are not available on this system: Standby (S1) The system firmware does not support this standby state. An internal system component has disabled this standby state. Hypervisor Standby (S2) The system firmware does not support this standby state. An internal system component has disabled this standby state. Hypervisor Standby (S3) An internal system component has disabled this standby state. Hypervisor Hibernate An internal system component has disabled hibernation. Hypervisor Standby (Connected) The hypervisor does not support this standby state. The system firmware does not support this standby state. Hybrid Sleep Standby (S3) is not available. Hibernation is not available. The hypervisor does not support this standby state. Fast Startup Hibernation is not available.

I already installed a graphics device driver to prevent the graphics device from blocking Sleep and Hyper-V. So this should not be an issue.

What can I do to enable Sleep and Hibernate?

Regards,

Daniel

Hyperv basic understanding

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Hi please assist me to understand basic of Hyperv like if I have 2 could with octacore processor, 1 tb San storage, 120 gb ram so I am looking maximum what is the of processor we can use in terms of logic and virtual, aging how ram we can use in terms of virtual ram, again maximum storage we can use in terms of virtual kindly be specific this is basic understanding so I want answers I have taken example of server with configurations to helpme to understand better way

IIS on Hyper-V Server 2012 r2

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I have a server running Hyper-V Server 2012 r2 and I would like to install IIS on this server. Every tutorial I have found seems to not work with this setup. I am beginning to think that Hyper-V Server 2012 r2 cannot even run IIS.

Can someone confirm for me whether it can be configured or not? I want to end this wild goose chase early if possible. Thanks


Export / Checkpoint failure because of one or more shareable VHDs attached.

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I implemented a SQL VM Cluster in Hyper-V using shared hard disks.  I have not yet put into production as I'm still testing.  I tried to export the machine to get myself an ad-hoc backup.  This is when I came across the error saying "Cannot take checkpoint"  "MySQLNode" failed to export.  cannot take checkpoint for MySQLNode because one or more shareable VHDs are attached.

Oddly, I haven't much in terms of this error.  During all my project planning I didn't even come across any mention of this.

I plan on using Microsoft Data Protection Manager for backups.  Am I going to run into any issues in trying to backup these VMs?  How do I export these machines if needed?  What other potential issues might we face?  Should we consider changing the type of shared storage we use?

Any help / advise is much appreciated.

Thanks

David

The computer does not boot if Hyper-V is enabled on Windows 10 pro

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I have an HP Pavillion, I enabled virtualization on the BIOS, and when I enabled Hyper-V in the computer, when I reboot, windows 10 does not boot, it halts on the five pints rounding.

I have tried to disabled the wifi and bluetooth devices in the devices manager, because I have readed that can be a conflict with this devices, but the problem persists.

I would like to know how can I enable Hyper-V because I need to to the windows phone emulators.

Thank you so much.

Convert vmdk to vhdx

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Hi,

I have a client that needs his vmdk files converted to vhdx. I tried to use the MVMC 3.1 tool but it just doesnt get thet job done.

So I tried to run a powershell command to do this. Here is the syntax I have used.

import-module 'C:\Program Files\Microsoft Virtual Machine Converter\MvmcCmdlet.psd1'
ConvertTo-MvmcVirtualHardDisk -SourceLiteralPath "C:\WindowsServer2008STD.vmdk" -DestinationLiteralPath "M:\WinServer2008Std\" -VhdType DynamicHardDisk -VhdFormat Vhdx


I have not yet tried the converted vhdx files, but the original file size of one of the vmdk is 80Gb and after this conversion the file size is only 59Gb. Another vmdk file is 250Gb and after the conversion the vhdx is only 48Gb.

Has anyone done this yet? This can't be normal.

Hyper v host & VM's are unable to log in to domain remotely after active directory migration from 2008 to 2012

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Hello all,

I have Hyper V core 2012 host(7 no.) & 36 Virtual machines hosted on it . After AD upgradation from 2008 to 2012 our hyper V hosts & virtual machines were unable to log on to domain remotely . They are showing error "please wait for local sessions manager". We tried to log on to servers physically, but the log on is very slow.

Virtual machine OS is Windows server 2012.

Please suggest..

what is the best setup for a Lab Network

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i have project the required migration of exchange server form 2007 to 2013 which will include some changes on the
domain control
and before i do this project in the production environment
i want to do it in la ab environment before i implement it on the real environment
but i am knew on the hyper-v and i dont know which the
best setup for the Lab Network ??

scene i will ad copy from the real vms  of domain control and exchange server
and i dont want the lab environment to affect the real environment
and i may need to access the network

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