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Hyper-V 2016 to 2016 Standard - Migrating a VM

March 7, 2019, 9:57 pm
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I have a smaller server running OS 2016 Hyper-V. It contains 3 VMs (2 Linux based, 1 Windows 2016 180 day trial based-license is up).  But I now have a 2016 Standard license and want to take advantage of the 2 Windows VMs that comes with 2016 Standard.  The plan is to convert my 2016 Hyper-V to 2016 Standard. The box/hardware will not change, just the underlying OS.

1 of the Linux VMs and the Windows VM are not very important, however, 1 of my Linux VMs has WAYYYY too much work done to lose it (a mountain of customized files across 2 disks and a lot of customization of the primary app it's running) with it to lose it.

The intent (I believe best practice?) is to export that critically important Linux VM, do a fresh install of 2016 standard, import back in the critically important Linux.  Are chances good the Linux VM and the primary app its running will come back just like it was? Any suggestions on best practice for what I want to do?


  
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CPU-Usage

March 6, 2019, 12:46 am
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Hello,

yesterday i wanted to understand CPU-Usage-Display from VM's and Hypervisor-Hosts and i red a lot of regarding stuff.

First question:

A lot of posts say, that the display in the taskmanager does only show the usage of the host-OS vCPU, but not of the physical. While i checked the CPU-Usage, i got another picture! The Taskmanager of the HyperV-Host seems to show the exactly same values as here the "logical CPU of hypervisor" (i am not sure if microsoft made a mistake in the translation, was hard to find the counter because it's listed under L what i didnt expect), that you can see here with the fat red line.

So i am wandering if microsoft changed the behavier of the taskmanager in Server2016 (what is the System i made this tests on), or if i misunderstood something!

while i recorded this graphs, i started CPU-Burn.

within the first peak of 100% CPU-Usage, i ran CPU-Burn on the Hyper-V-Host, so the blue line goes to 100% and the fat red one aswell. okay, this seems to be logical.

within the second peak of 100% CPU-Usage, i ran CPU-Born on one of the HyperV-VMs, that has assigned 11 vCPU's (while the system has 12 logical cores), so it is limited to 95% what we can see within the fat line.

what i dont understand is: what does the thin red line shows? if it is the sum of all virtual cpu's it should show aswell almost 95% CPU-usage, but it just shows something like 35% which makes no sense at all to me. can somebody explain that?

last but not least, the HyperV-Manager has also a CPU-Usage display, which does not correspondent to the CPU-Usage-display inside the taskmanager of the VM, and also does not correspondent to the relative ammount of usage of the physical CPU - as far as i understand everything right and as far as i found the right counter to display the usage of the physical CPU.

i hope, someon can bring light into the dark!

CPU-Usage

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Hyper-V VM status is "Incomplete VM configuration"

March 8, 2019, 1:12 am
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Suddenly one of the VM in Hyper-V is showing as "Incomplete VM configuration" in Virtual machine manager. VM is running fine, I am able to login to VM but Veeam backup are getting failed because of this. 

Any suggestion will be of great help.

As of now I have restarted WS-Management service in hyper-V host and tried to re-register this VM again in VMM. Repair and refresh options are not helping. 

Below is the error log:

Error (2912)
An internal error has occurred trying to contact the server: NO_PARAM: NO_PARAM.
Unknown error (0x80041003)

Recommended Action
Check that WS-Management service is installed and running on servert. For more information use the command "winrm helpmsg hresult". If server is a host/library/update server or a PXE server role then ensure that VMM agent is installed and running. Refer to http://support.microsoft.com/kb/2742275 for more details.

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Understanding resilient options for File Server in cluster

March 6, 2019, 6:36 am
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So I have an established Server 2016 Hyper-V Cluster, running a variety of Windows server VM's.

If I take an existing File Server VM, it can run on any one of the 4 nodes and can be live migrated around easily. (I mean general purpose file server for users documents)

What options/solutions are there to both increase resilience and ease maintenance tasks for file servers?

We already use DFS-N so the FS would be accessed from \\DOMAIN\Share\ by the users, but only the FS VM itself is contained in the DFS-N root/config. (This was simply done after I got fed up with UNC paths changing every time I replaced a physical FS, way back when!)

I have done various reading online and I feel I'm missing a concept or a solution here.

What I really want, is a 2nd FS VM, that accesses the same Data drive that's being shared by the first VM, that can be added as a 2nd server in the DFS-N config, so that if one FS VM is offline for maintenance (for example) Staff can still access their data on the \\DOMAIN\Share. It would make it easier for me to do maintenance during the day with a 2nd, or even 3rd VM running.

Maintenance on the Hyper-V Custer Nodes is easy during the day, I just live migrate running VM's to another node and carry on with the work.

I have read up on host-clusters, shared VHDX files but I am still confused as to how to achieve my goal.

If it makes any difference, this is all running on a Dell VRTX server, which has 4 server blades and built in local storage thats made available to all 4 blades via MPIO.

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Virtual Machine stuck in Stopping state

March 4, 2019, 4:32 am
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I have a single virtual machine running on my Windows Server 2012 Standard Hyper-V host. Occasionally my VM goes offline (as far as my remote monitoring agent is concerned) and when I check the VM status in Hyper-V Manager the VM shows as Stopping. The vmwp.exe process is still running and cannot be terminated. My only option seems to be to reboot the server.

The server went offline at 10:09AM today and I checked System and Application logs for an explanation but found nothing however in the Hyper-V-VMMS Admin log I found this error at 8:29AM today:

Date:          20/02/2019 08:29:04
Event ID:      14100
Task Category: None
Level:         Warning
Keywords:      
User:          SYSTEM
Computer:      server.domain.local
Description:
Shut down physical computer. Stopping/saving all virtual machines...

I am not sure if this is relevant.

Is it possible to identify why the VM is stopping?

Thanks

David
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Vpn site to site

March 8, 2019, 6:12 am
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Hello guys, i want to simulate a site to site VPN connection,  on hyper-V in my laptop, 

could you provide me some tips about how to build it? 

- Do i need to have VPN server in each LAN? 

- Would you set the VPN to have 1 NIC connected to the LAN's switch and another NIC connected to the "WAN" switch? 

or there's a different way of doing that, 

any tips and guidance would be perfect!

Thanks 

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migration

March 8, 2019, 6:25 am
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Hi,

The internal storage used on our Hyper V host filled up this is roughly 3tb in space, I setup a NAS and did a copy but this failed due to permissions.  So I am re-doing the copy using robocopy to copy all permissions on the file.

When i originally did the attachment of the disks i saw the following errors;

14140 - failed to add device 'Virtual Hard Disk'. (Virtual machine ID 84E969FE-CF32-44E9-82F0-0EFF52A8010D)

12620 - 'TONSSQL01': Cannot get information for attachment 

16010 - The operation failed.

I then tried creating a new VM and adding in the disks and I was still unable to do this;

error 1300 - Failed to creat external configuration store and error 15268 - failed to get disk

I then ran ICalcs to give the machine ssid access to the vm and this failed.

My question is if i'm using robocopy to copy the files with all attributes and permissions will this fail again?

Thanks.

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Availability of Microsoft Hyper-V Server 2019

February 25, 2019, 5:38 am
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Dear Microsoft!

On https://www.microsoft.com/en-us/evalcenter/evaluate-hyper-v-server-2019 you link the hyper v core server setup. However, it only leads to https://cloudblogs.microsoft.com/windowsserver/2018/11/13/update-on-windows-server-2019-availability/ and there is no download available.

When are you planning to make it available?

By the way: The download that was briefly online https://software-download.microsoft.com/download/pr/17763.1.180914-1434.rs5_release_SERVERHYPERCORE_OEM_X64FRE_EN-US.ISO is barely usable for 2 reasons:

A after installing it and activating Remote desktop, the server does not start to listen on port 3389. No RDP possible!

B Trying to do an in-place upgrade from Hyper-V Server 2016 leads to an error: "The installation failed in the SAFE_OS phase with an error during SET_Product_Key operation"



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Windows 2008 HyperV Replica in Windows 2012 HyperV

November 28, 2012, 11:25 pm
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Dear Team,

In our organization  We have more than 20 VM's which is running on Windows 2008 Hyper V.

Now my organization wants to make Far DR site to another city.They are planning to deploy Windows 2012 in Far DR Site and they also want

this 20 VM's should replicate in Far DR Site.

E.g:- somethings happen in DC and all this 20 VM's should be up on Far DR Site within minute.

How do we make this possible.Pls Help on this.

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Physical resource is exausted

March 9, 2019, 2:17 am
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Hi,

I am trying to merge AVHDx files and suddenly the merge wizard has started showing the below error. Anyone ever got the same message?

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Umerged checkpoint mess - orphaned .avhdx files

February 3, 2018, 8:06 am
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This is a Server 2016 Hypervisor and single server 2016 guest VM.

It looks like the backup software has been creating checkpoints that have failed to merge for about a week now.  There are multiple .avhdx files for the VM in the file system but the Hyper-V UI shows no checkpoints exist. 

In addition the Get-VMSnapshot command in Powershell agrees with the UI - no checkpoints:

However, checking the machine settings in Hyper-V manager, I find that the hard drive is pointing to one of the differencing disks and the message "Edit is not available because checkpoints exist for this virtual machine."

To make matters worse, I have no idea how to do a manual merge for these avhdx files because both the root/parent vhdx and TWO of the child avhdx files show the exact same date modified stamp - the time I shut down the VM last night.  So I am not sure which avhdx is last in the chain.

Hyper-V is currently pointing to the differencing disk ending in B2C2 above. The one ending in CAC5 looks like it was created earlier (base on the .mrt file) but has the same stamp.

Also - at this point in the write-up I restarted the hypervisor, and when it came back up, the virtual machine had disappeared from Hyper-V:

So I went through the process of re-importing and registering in place:

This threw an error saying it failed, but the VM now re-appears in HyperV manager anyway. VERY strange.

I have started the VM again and will disable backup so no more checkpoints are created, but I really need to get this resolved quickly as the disk only has 116 GB of free space remaining and I do not want it to get so full that I cannot merge these checkpoints.

Help!


[Edit] - This post is for some reason being flagged as spam and so some of the embedded images are missing.  I am trying to resolve this so the images can be displayed.
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Hyper-V host and disabling VMQ

February 19, 2019, 11:46 am
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Hi,

I have a hyper-V server with different VM’s on it.  After installing and configuring i keep having slow network traffic. In other words all works slow.

After searching the internet i have red that VMQ kan be parralizing for network traffic. Altough i have disabled all VMQ options on my networkadapters, i still have the issue.

So i started digging deeper.  I found a Powershell command to check if this is realy the case. Output is this :

Get-VMNetworkAdapter -ComputerName PROLIANTDL380 -VMname * | Select VMName, VMQweight


I have red that is should be 0 ,  i don’t know what 100 means ?

So the command to display the settings i did found (see above)

I can’t seem to find the powershell command to set VMQ to 0 (if this is needed ofcourse, and would have impact on my network traffic)

Thanks,

Extra info, these are my network adapters of my VM host :


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High ping latency on Windows Server 2012 virtual machine on Hyper-v

April 18, 2013, 7:50 am
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Hello team,

I've been experienced an issue that is affected the performance of my environment. I have the following scenario:

1 - Server Dell R720

1 - SAN DELL MD3220i

1 - Switch Cisco 3750G

As the picture shows, I just have a switch, I'm pretty know that the recommended setting is with two switches, however I just have one of them. A personal of Cisco has configured this device with different vlan's so that means that the connection between the storage and the host works so nice.

The problem is the latency that the virtual machines are experiencing. I have Windows Server 2012 and I'm using Hyper-v to virtualize my virtual machines.

Does anyone know which parameters May I need to modify, enable or disable on Windows Server 2012 - Hyper V to work fine?

I would appreciate your help in this regard!

Thank you in advance!

Regards,

Paul Mendoza.

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Hyper-V unusuable on win10 1809 - default switch disables wireless interface

March 9, 2019, 10:19 am
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Hello,

I'm trying to setup hyper-v on a lenovo t470 with windows 10 1809 enterprise.

The laptop has 3 ethernet interfaces: Ethernet,Wireless and Mobile LTE

The default switch is "automatically" bundled/linked to the rj45 ethernet network interface (Intel I219-LM, see picture below) and automatically "instantly disables" the wifi interface which I'm using for my network connectivity.

As a consequence I don't have any connectivity and it is also impossible to add f.ex. a new switch and bundle/link it to the wifi interface, as the wireless interface is _not_ listed in the available interfaces.

To be able to have a working network, I need to "disable" the hyper-v "vEthernet (Default Switch)" in "network connections". By disabling the switch. After disabling the switch it instantly renables the wireless interface, and I'm able to use it. Unfortunately, at times you disable the "vEthernet (default switch)" and it renables itself ...  ???

What is going on ....?

So if hyper-v is installed:
1) the wireless network is not working until I manually disable the "vEthernet (Default Switch" interface in the network connections.
2) Of course, no VM have Internet connectivity as the "vEthernet (Default Switch)" is linked/bundled to the standard rj45 ethernet port which has no connectivity/cable (as I don't have a rj45 cable connected).

I would really appreciate some help.

I've tried to uninstall & reinstall hyper-v, repair network connections etc ... nothing worked.

Thanks a lot!
Didier


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Veeam leaves a Recovery Checkpoint after backup job is run?

March 6, 2019, 6:55 am
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Hello, 

I tend to have a few VM's with "leftovers" from Veeam Backup Jobs - and the only way to delete them is by doing this :

https://blog.workinghardinit.work/2015/10/15/remove-lingering-backup-checkpoints-from-a-hyper-v-virtual-machine

Get-VMSnapshot -ComputerName "MyHyperVHost" -VMName "VMWithLingeringBackupCheckpoint" | Remove-VMSnapshot

Hyper-V is running on Server 2016 Datacenter with Veeam Backup and Replication 9.5 Update 3
https://www.veeam.com/kb2353

So - anyone else experiencing this?

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Extending or creating a volume

March 6, 2019, 10:14 pm
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Platform

Hyper V Server 2016 
Management platform: Server Manager and native Powershell

 In the the image below you will notice spare space on a local drive where I wish to add another volume or partition. UsingComputer Management via Server Manager, the option is not available. How can I do this with HyperV? 

Thanks

MIS5000

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Hyper-V support and licencing in Windows Server Essentials 2019

March 4, 2019, 3:11 pm
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Hello,

Need a bit of help. Can someone tell me if  Microsoft Server 2019 Essentials comes with licencing for Hyper-V so you can have a physical instance of Windows Server 2019 Essentials installed with the same copy of Windows Server 2019 Essentials running as a VM?

Basically I have one physical server but wanted to be sure that if I buy Essentials 2019 it can be used as a host and a VM

Many thanks



Trevor 



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