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Hyper-V reverse replication fails

December 2, 2019, 4:34 am
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Hi,

I setup two hosts with Server 2019 and enabled certificate based replication on both.

Failover between primary and secondary host works fine. However when I reverse the replication I get this error message:

Hyper-V could not replicate changes for virtual machine 'Lubuntu_test' as Hyper-V is not in a state to accept replication on the Replica server. 

I have to remove the entire VM on the primary in order to have it succeed. This causes a lot of wasted bandwidth.

Both servers are in a different datacenter. I forwarded port 443 in the firewall.

If I create a new replication from secondary to primary host, it works fine.

What gives?

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Hyper-V virtual switch(es) export then import

December 2, 2019, 5:33 am
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Hi,

We're doing some Windows Server 2012R2 Hyper-V migration to Windows Server 2016 Hyper-V. I would like to check if there's a way (PowerShell cmdlet/script or something else) that can export Hyper-V cluster virtual switch(es) into a file that can also be imported to a newly built Hyper-V cluster? Better yet, if there's a way to export the current cluster config and import to the newly built cluster?

Thank you

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Is it better to create a 2nd volume on a Hyper-v cluster or expand Volume 1?

December 2, 2019, 7:08 am
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I have a 4tb volume 1 mirrored and am running out of space - no unallocated.  However, there is space in the pool.  I could expand the volume 1 or create a second volume (the way I understand it) and move vm's to that volume.  Is there any advantage in creating a second volume?  Would it be faster for vm's to be in a smaller volume?  I have a software raid so I'm looking for any increase in speed I can get. 
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Hyper-V 2016 Replication

December 2, 2019, 7:30 am
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Hi guys,

I have successfully created a Hyper-v cluster with 2 host, 12 VM roles, each with it's CSV on share HPE MSA 2052 storage.

I am to create a DR cluster with similar hardware, and not sure how to about the DR setup. Haven't been able to find any step by step guide on how to do this.

Should I create similar CSV, then use a hyper-v broker to point to them as destinations for each VMs?

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Critical Bug: Hyper-V 2019 - Guest VMs do not shutdown gracefully when host shuts down

May 14, 2019, 2:48 pm
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Greetings,

Since December 2018, Hyper-v on Windows Server 2019 users have been reporting this issue.  I am posting a new thread because the original thread on the topic had a potentially misleading headline.  And most of the ensuing thread consisted of repeated requests for more information when in fact that information had already been provided.  And yet, even after an MS representative confirmed through his own testing that the (serious) problem exists, no further information has been provided for over five months.

The problem, in a nut-shell is this:  Guest VMs do not shut down gracefully when the Hyper-v host is shut down or restarted, regardless of guest VM settings.

Even when a guest VM is set to "shut down the guest operating system" as its default behavior for the "Automatic Stop Action",  the Hyper-v host doesnot actually shut down the guest VM(s) as it shuts itself down.  Rather, the VMs are just terminated as though power is cut.  Upon rebooting, the guest VMs will report no attempt to be shut down, and instead report that the prior shutdown was unplanned.

This behavior is easily reproduced.  Merely. . .

  • Build a Hyper-v 2019 host server
  • Install a guest VM.
  • Set the guest VM to "shut down the guest operating system" under "Automatic Stop Action."
  • Reboot the Hyper-v host while the guest VM is running.

. . .you will find that the guest VM was merely switched off ungracefully.

Microsoft, please acknowledge this issue and give us an ETR.  I'm sure I'm not the only person putting their server upgrades on hold after running into this issue.  Various work-arounds (using "save state" instead of "shut down") are not a viable option for me.  Please, give us some news and hope (after an inexplicably long period of waiting) that a fix is imminent.

Best Regards,

Brian



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When disabling hyper-v winhvr.sys causes a SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

September 11, 2019, 6:46 pm
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Hello,

I am in kind of a bind where I need to run Virtualbox (v6.0.0) for one of my classes and I also need docker for my work. I downloaded Virtualbox first and everything was going great then I downloaded Docker a few days later without thinking. Obviously, after docker was installed Virtualbox stopped working.

Virtualbox error: 

(VERR_NEM_MISSING_KERNEL_API).

VT-x is not available (VERR_VMX_NO_VMX).

After some digging around I realized hyper-v was the issue so, I decided to just disable hyper-v so that I can work in Virtualbox then switch it back when I need docker. Easy enough. I go through the UI to disable hyper-v and restart my computer then I get the BSOD.

BSOD error: SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

After downloading "WhoCrashed" and checking out the error I come to find that it's a driver issue, not surprising. However, what was surprising is that it's a hyper-v driver causing the error. I was trying to disable hyper-v why would one of their drivers give me an error?

Any help would be appreciated! I'm running a X1 Carbon Lenovo 6th Gen. 

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Hyper-v could not create virtual switch on window server 2019

November 30, 2019, 8:57 pm
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hi,

I try to create a External Virtual switch on hyper-v virtual switch manager.

But it failed and shows as below, any idea?

[Window Title]
Virtual Switch Manager for DC

[Main Instruction]
Error applying Virtual Switch Properties changes

[Content]
Adding ports to the switch 'New Virtual Switch' failed.

The operation failed because the file was not found.

[Close]
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Hyper-v unable to create checkpoint

November 27, 2019, 6:44 am
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Issue : Unable to create checkpoints on three vm's in Hyper-V manager and backups are failing with error: Failed to create VM recovery snapshot.​

OS Name:                   Microsoft Windows Server 2019 Standard​

OS Version:                10.0.17763 N/A Build 17763​
Backup solution : Veeam Backup​
Antivirus: Symantec​

VSS related services are working fine​

Tried creating checkpoint on one of the VM,however getting error "the operation cant be performed while the object is in use"​

checked the event viewer and could see event ID's 3280,3350,18012,18014​
checked for any shadow copies through the vssadmin list shadows command however could not see shadow copy configured​

configured and enabled shadow copy on the vm

The backup jobs for all three vm's are getting stored on the D drive (Backup Storage) of backup server

Restarted the vm but even after restart ,unable to create checkpoint from hyper-v manager​

Could you please check if this is a bug or any known issue and help me 

swathi

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Slow network speeds on internal network

November 28, 2019, 9:29 am
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hi,

we have multiple Hyper-V servers in a cluster.

we have a virtual service that uses internal network switches within hyper v and we are seeing slow performance on this.

to test connectivity i just spun up a basic windows server and added it to the internal network.

when i copy a file using the internal network IP range i barely get about 80MBps per sec (less than 1Gbps).

we have physical networking of 10Gbps and the internal network is showing a status of 10Gbps so i dont understand how the internal network which is purely virtual gets such slow network speed.

hope someone can help me out here.

thanks

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merge in progress ??

June 1, 2008, 4:22 pm
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hello

tonight i shut down my virtual machines (to move hardware)

one of the VMs said merge in progress  under status.

after 1 min it went to 1% complete.  i had to just shut down the 2008 machine.

When it booted back up, the VM loaded normal.  What was the problem ? i cant find anything in relation to merge in progress and what it means.
Chris D
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Cluster node - Event 252 - cluster service crashed

August 12, 2019, 8:57 am
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We have a 4 node Windows Server 2016 Hyper-V Cluster.  Over the weekend, one node of the cluster reported this in the System event log:

"Memory allocated for packets in a vRss queue (on CPU 14) on switch 620355C8-4D29-4D91-BE80-B840921EDC4A (Friendly Name: Team_Trunked) due to low resource on the physical NIC has increased to 256MB. Packets will be dropped once queue size reaches 512MB."

Seven seconds later it reported that it had increased to 512MB, then two seconds later the LiveMigration NIC reported it had begun resetting, then a few seconds later a reset was issued to \device\raidport1 (source: ql2300).  After two minutes of this and a few other repeats, I started getting warnings of CSVs no longer being able to access this cluster node and then the Cluster service shut down on this node and all VMs are shut down and migrated to other nodes in the Cluster.  

Our weekly DPM backups of the VMs had started about 1.5 hours before this occurred so there was some additional strain on the NICs at this time, though that should have gone through the NIC the OS is running on so I don't know why that would have affected the other NICs where the VMs general data was going through (Team_Trunked) and the LM NIC.

Does it make sense that the first warning about Event 252 would have caused all this or is there more to this?  


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Windows Server 2019 Datacenter boot loops after enabling Hyper-V

October 5, 2018, 4:18 pm
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I took my Windows Server 2016 Datacenter test server in my home lab (Dell R710 with two X5650s and 32GB of RAM) and installed Server 2019 Datacenter on it to try out the new features that are centered around VMs (Hyper-V) and data deduplication. The OS install went fine, but after enabling Hyper-V in Server Manager, the system goes through its normal reboot that occurs during Hyper-V enablement, then it proceeds to boot loop. Windows Server 2019 install media's boot repair does not fix the issue, and I cannot get in via Safe Mode. Any advice would be greatly appreciated.

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Microsoft 2016 & 2018 DataCenter Hyper-V Inventory tool ??

December 3, 2019, 12:59 pm
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Is there a good inventory tool or add-on that can report on the

Virtual and Physical Servers ??  I've tried several from google searches

"xiaconfigurationserver"   and  Get-HyperVInventory-v2.4 scripts - not working ....

Is there a Microsoft Solution for getting a full inventory of what is running on Hyper-V ?

Thanks in advance

CWall

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hyper-v

December 1, 2019, 7:44 pm
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I have two standalone physical servers with hyper-v role. Each of the have different cpu, disk and memory specs and size. I want to implement hyper-v failover clustering and use the disk of hyperv 1 since it has large capacity disk. Could this setup be possible or do I need a 3rd server to act as the storage?
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Server 2019 Hyper-V Error Failed to Move RSS Queue

November 20, 2019, 10:27 am
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I have a new installation of Server 2019 STD with Hyper-V role installed.  I am getting the following errors over and over:

"Failed to move RSS queue 1 from VMQ 3 of switch DCC49724-C426-4DF1-B10F-9533638F2C18 (Friendly Name: HPE Ethernet 10Gb 562SFP+ Adapter - Virtual Switch), ndisStatus = -1073741811 ."

The Guest VM is losing network connectivity every once in a while for a minute or so.

Is this error the cause, and if so how to resolve?

Brian Modlin

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Differencing disk hyper-v Merge issue

July 20, 2014, 8:42 am
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I have a 2008 R2 server running hyper-v.  We have a Hard drive set up as type differencing.  This did not make sense to me as there is only one virtual machine running on the server.  I went to merge the drives into one, but here comes the problem.  There are 7 drives and I merged the 4th one with its parent by mistake.  Now the last three cannot find the parent VHD.  Is there anyway to resolve this?  Please if anyone could help it would be much appreciated.  I have no idea how to get this going again.  The backups are much too old to use.
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Hyper-V 2016 Replication

December 2, 2019, 7:30 am
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Hi guys,

I have successfully created a Hyper-v cluster with 2 host, 12 VM roles, each with it's CSV on share HPE MSA 2052 storage.

I am to create a DR cluster with similar hardware, and not sure how to about the DR setup. Haven't been able to find any step by step guide on how to do this.

Should I create similar CSV, then use a hyper-v broker to point to them as destinations for each VMs?

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Server 2019 - Error 0xc0000225 When Adding vTPM

November 26, 2019, 7:56 pm
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Hello,

I'm testing Server 2019 out as a migration path but I'm having an issue with Hyper-V on where it fails to start any VM that has a vTPM enabled. I tried to enable a vTPM on a test VM, and initially it failed with the error:

TimeCreated  : 11/26/2019 8:12:15 PM
ProviderName : Microsoft-Windows-Hyper-V-VMMS
Id           : 15500
Message      : 'vtpm_test' failed to start worker process: The object was not found. (0xC0000225). (Virtual machine ID CFBC4A73-...)

Since this was a test hypervisor,  rather than troubleshoot the error I wiped it clean, and re-installed Server 2019 DataCenter from scratch, re-installed the Hyper-V role, and tried to provision another fresh VM with vTPM. However I received an error that the key protector couldn't be unwrapped:

TimeCreated  : 11/26/2019 8:45:01 PM
ProviderName : Microsoft-Windows-HostGuardianService-Client
Id           : 2014
Message      : The Host Guardian Service Client failed to unwrap a Key Protector on behalf of a calling process. This event will normally correspond to a failure to startup a shielded virtual machine. Consult the description for further details. This could be related to an attestation issue, a Key Protection Server issue, or a network connectivity issue:

               System.IO.FileNotFoundException: Could not find file 'C:\Windows\system32\config\VSMIDK'.
               File name: 'C:\Windows\system32\config\VSMIDK'
                  at Microsoft.Windows.KdsClient.HgsClient.UnwrapProtectionDescriptor(Byte[] ingressProtectionDescriptor, Byte[]& encryptedTransferKey, Byte[]& encryptedWrappingKey, Byte[]& encryptedKeys)
                  at Microsoft.Windows.KdsClient.Interop.ManagedEntry.UnwrapKeyProtector(IntPtr keyProtectorPointer, IntPtr unwrappedKpPointer, IntPtr errorContextPointer)

Doing some digging around, this file is supposed to be auto-created but it wasn't, so I just went ahead and copied it over from one of my Server 2016 installs. After that, I still receive the same error when trying to add a TPM to a VM and start it:

TimeCreated  : 11/26/2019 9:13:15 PM
ProviderName : Microsoft-Windows-Hyper-V-VMMS
Id           : 15500
Message      : 'vtpm_test' failed to start worker process: The object was not found. (0xC0000225). (Virtual machine ID ED380AFD-...)

It's worth mentioning that VMs start without a vTPM and I've also tried installing the HostGuardian feature to see if that helps. Also, I'm not experiencing this issue on a fresh Windows Server 2016 install nor on the established Windows Server 2016 boxes I have. Any thoughts as to what may be causing this issue?

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The dynamic memory balancer could not add memory to the virtual machine Event ID 10020

November 29, 2019, 3:28 pm
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Hyper V - Exchange server status wrong

December 5, 2019, 3:36 am
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In the hyper V manager the Exchange server hosted on a VM reads the status as Turning off...

The server has been read this for a days now and has not shut down and is continuing to run as normal. Why would the status read this if it is not shutting down.

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