Windows Server Backup with Hyper-V

August 20, 2019, 10:27 am

≪ Previous: What is causing this slowness

I'm trying to use Windows Server Backup on a Windows Server 2019 Standard with Hyper-V, but it gives me errors.

This is the message from Windows Server Backup:
"Backup succeeded but some components backed up were inconsistent in the snapshot. The application this component belongs to might not function properly after this backup is used for recovery."

And this is the message I get in Event Viewer for each VM that is online during the backup:
"VSS writers inside virtual machine '*****' failed to perform BackupComplete to its shadow copy (VSS snapshot) set: A function call was made when the object was in an incorrect state for that function (0x80042301)."

Any suggestion on how to use Windows Server Backup for our Hyper-V VMs?

↧

Do not save Hyper-v data

August 20, 2019, 4:48 pm

≫ Next: Tesla V100 - Hyper-V 2019 - device cannot find enough resources (code12) - MMIO config ?

≪ Previous: Windows Server Backup with Hyper-V

Guys, I would like not to save data on the virtual machine, but whenever I turn it off, it saves everything, how not to save?

↧

Tesla V100 - Hyper-V 2019 - device cannot find enough resources (code12) - MMIO config ?

August 21, 2019, 4:04 am

≫ Next: SSD RAID 6 Endurance

≪ Previous: Do not save Hyper-v data

Hello,
I have a server HPE Proliant DL380 Gen10, 512GB RAM, with inside a Tesla V100-PCIE-32GB.
Windows Server 2019 is installed.
We have configured the Hyper-V role and installed a VM with 320GB RAM.

What we have done on the host is :
- Disabled the Tesla on the host.
- Set-VM -Name $VMName -AutomaticStopAction TurnOff
- Set-VM -LowMemoryMappedIoSpace 3Gb -VMName $VMName
- Set-VM -HighMemoryMappedIoSpace 33000Mb -VMName $VMName
- $locationPath = "PCIROOT(36)#PCI(0000)#PCI(0000)"
- Dismount-VMHostAssignableDevice -force -LocationPath $locationPath
- Add-VMAssignableDevice -LocationPath $locationPath -VMName $VMName

Unfortunately, each time the VM starts I have this error message in the device manager :
This device cannot find enough free resources that it can use. (Code 12)
If you want to use this device, you will need to disable one of the other devices on this system.

I have tried to change the MMIO to
3GB / 33000MB
2GB / 4GB (found on a blog but for Grid cards)
176Mb / 560Mb -> because the MS script listed the card as :
NVIDIA Tesla V100-PCIE-32GB
Express Endpoint -- more secure.
And its interrupts are message-based, assignment can work.
And it requires at least: 48 MB of MMIO gap space
PCIROOT(36)#PCI(0000)#PCI(0000)
So I added 48 to the 128Mb / 512Mb from the default configuration.

When changing the MMIO config, do I need to remove the card from the VM, change the config and reconnect the card to the VM or can I just change the config without doing anything to the VM ?

No MMIO configuration solve the problem.
Can someone please help me ?

Thanks in advance for your help.

Marc

↧

SSD RAID 6 Endurance

August 21, 2019, 4:11 am

≫ Next: Server Manager crashes on every Server OS (2012 R2, 2016, 2019)

≪ Previous: Tesla V100 - Hyper-V 2019 - device cannot find enough resources (code12) - MMIO config ?

Hi,

I’m planning to use Hyper-v cluster with SSD drives. However, I have some problems to get information what RAID level which I should set. The storage will be used for virtualization with some Database, Exchange and other servers (around 50). I was planning to set RAID 6 but I worry about endurance as some people say it will wear twice faster than RAID 10. Other say RAID 6 is absolutely fine. Can somebody advise me if should I use RAID 6 or not?

↧

Server Manager crashes on every Server OS (2012 R2, 2016, 2019)

August 22, 2019, 4:44 am

≫ Next: issues reaching or downloading from https from Hyper-V guests

≪ Previous: SSD RAID 6 Endurance

Hi All,
today I observed a strange behavior of our first Hyper-V 2012 R2 Cluster (26 Hyper-V Cluster Nodes). As soon as I start the Servermanager (ServerManager.exe) on one of this Nodes, it crashes when enumerating / doing the inventory of the "All Servers" Group.
All Hyper-V Servers are fully patched (Patchday 13th of August 2019). So I tried to connect to one of the 26 Hyper-V-Cluster Nodes from one Standalone Server (OS 2016, fully patched on 13th of August 2019) and I get the same errors, as soon as the Servermanager on the 2016 Server enumerates the "All Servers" Group.

I gave it one more try and did the same on a Standalone 2012 R2 Server (patched in July 2019) an even here I got the same errors.

On our second Hyper-V 2012 R2 Cluster (same OS, same Config as our first Hyper-V Cluster) but with only 4 Nodes, fully patched on 13th of August 2019, everything works fine when opening Servermanager...
Any Ideas? Are the 26 Hyper-V Nodes producing too much Info causing Servermanager to crash?

I´ve tried everthing, creating a new ServerComponentCache, clearing the user.config in "...\AppData\Local\Microsoft_Corporation\ServerManager.exe_StrongName_m3xk0k0ucj0oj3ai2hibnhnv4xobnimj\6.3.0.0",
creating a new ServerList.xml in "...\\AppData\Roaming\Microsoft\Windows\ServerManager", installed .net Framework 4.8 including all security patches on one of the Hyper-V nodes...

I dont´t think, this has to do with Hyper-V itself...

Nothing worked...
Regards
Juergen

See Logs below:

Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: ServerManager.exe
Problem Signature 02: 6.3.9600.17238
Problem Signature 03: 53d0b3e7
Problem Signature 04: Microsoft.Windows.ServerManager.Common
Problem Signature 05: 6.3.9600.17238
Problem Signature 06: 53d0b3ba
Problem Signature 07: 1373
Problem Signature 08: 1c6
Problem Signature 09: System.ArgumentException
OS Version: 6.3.9600.2.0.0.400.8
Locale ID: 3079
Additional Information 1: 50a0
Additional Information 2: 50a0262852fbe0932493067405e0a59f
Additional Information 3: 8b35
Additional Information 4: 8b35aaccfbd87d8f369ca03b7e605722
Read our privacy statement online:
http://go.microsoft.com/fwlink/?linkid=280262
If the online privacy statement is not available, please read our privacy statement offline:
C:\Windows\system32\en-US\erofflps.txt

Log Name:      Application
Source:        .NET Runtime
Date:          22.08.2019 13:20:18
Event ID:      1026
Task Category: None
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      XXXXXXXXXXXX
Description:
The description for Event ID 1026 from source .NET Runtime cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
Application: ServerManager.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentException
   at Microsoft.Windows.ServerManager.Common.Data.RoleFeatureRoot..ctor(System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>)
   at Microsoft.Windows.ServerManager.Common.Data.Server.UpdateFeatures(System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature> ByRef, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature> ByRef, System.Collections.Generic.ICollection`1<Int32> ByRef)
   at Microsoft.Windows.ServerManager.Common.Data.DataAccessLayer.UpdateFeatures(System.String, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>)
   at Microsoft.Windows.ServerManager.Common.Refresh.FeatureDataProcessor.OnCompleted(System.Exception)
   at Microsoft.Windows.ServerManager.Common.Refresh.DataProcessorService.MethodCompleted(System.String, System.String, System.Exception)
   at Microsoft.Windows.ServerManager.Common.Refresh.DataProcessorService.OnMethodCompleted(Microsoft.Windows.ServerManager.Common.Refresh.NodeAccessItem, System.String)
   at Microsoft.Windows.ServerManager.Common.Refresh.NodeAccessItem.RaiseOperationCompletedEvent(System.String)
   at Microsoft.Windows.ServerManager.Common.Refresh.NodeRefreshItem+<>c__DisplayClass4.<InvokeMethod>b__0(System.String, System.String, System.String, System.String)
   at Microsoft.Windows.ServerManager.Common.NodeAccess.InvokeMethodOperation.OnCompleted()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.CallUnderOriginalExecutionContext(System.Action)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.CallIntoUserCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, System.Action, Boolean, Boolean)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncObserverProxyBase`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].OnCompletedInternal(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.InvokeWhenOperationIsSet(System.Action`1<Microsoft.Management.Infrastructure.Internal.Operations.CimOperation>)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncObserverProxyBase`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessNativeCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, System.__Canon, Boolean, Microsoft.Management.Infrastructure.Native.MiResult, System.String, Microsoft.Management.Infrastructure.Native.InstanceHandle)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncMethodResultObserverProxy.InstanceResultCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, Microsoft.Management.Infrastructure.Native.OperationHandle, Microsoft.Management.Infrastructure.Native.InstanceHandle, Boolean, Microsoft.Management.Infrastructure.Native.MiResult, System.String, Microsoft.Management.Infrastructure.Native.InstanceHandle)
   at Microsoft.Management.Infrastructure.Native.ExceptionSafeInstanceResultCallback.InvokeUserCallback()
   at UserFilteredExceptionHandling.UserFilteredExceptionMethod(System.Action, System.Func`2<System.Exception,Boolean>, System.Action`1<System.Exception>)
   at Microsoft.Management.Infrastructure.Native.ExceptionSafeCallbackBase.InvokeUserCallbackAndCatchInternalErrors()

The handle is invalid
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name=".NET Runtime" />
    <EventID Qualifiers="0">1026</EventID>
    <Level>2</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2019-08-22T11:20:18.000000000Z" />
    <EventRecordID>876181</EventRecordID>
    <Channel>Application</Channel>
    <Computer>XXXXXXXXXXX</Computer>
    <Security />
</System>
<EventData>
    <Data>Application: ServerManager.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.ArgumentException
   at Microsoft.Windows.ServerManager.Common.Data.RoleFeatureRoot..ctor(System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>)
   at Microsoft.Windows.ServerManager.Common.Data.Server.UpdateFeatures(System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature> ByRef, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature> ByRef, System.Collections.Generic.ICollection`1<Int32> ByRef)
   at Microsoft.Windows.ServerManager.Common.Data.DataAccessLayer.UpdateFeatures(System.String, System.Collections.Generic.ICollection`1<Microsoft.Windows.ServerManager.Common.Data.IFeature>)
   at Microsoft.Windows.ServerManager.Common.Refresh.FeatureDataProcessor.OnCompleted(System.Exception)
   at Microsoft.Windows.ServerManager.Common.Refresh.DataProcessorService.MethodCompleted(System.String, System.String, System.Exception)
   at Microsoft.Windows.ServerManager.Common.Refresh.DataProcessorService.OnMethodCompleted(Microsoft.Windows.ServerManager.Common.Refresh.NodeAccessItem, System.String)
   at Microsoft.Windows.ServerManager.Common.Refresh.NodeAccessItem.RaiseOperationCompletedEvent(System.String)
   at Microsoft.Windows.ServerManager.Common.Refresh.NodeRefreshItem+<>c__DisplayClass4.<InvokeMethod>b__0(System.String, System.String, System.String, System.String)
   at Microsoft.Windows.ServerManager.Common.NodeAccess.InvokeMethodOperation.OnCompleted()
   at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
   at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.CallUnderOriginalExecutionContext(System.Action)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.CallIntoUserCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, System.Action, Boolean, Boolean)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncObserverProxyBase`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].OnCompletedInternal(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncCallbacksReceiverBase.InvokeWhenOperationIsSet(System.Action`1<Microsoft.Management.Infrastructure.Internal.Operations.CimOperation>)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncObserverProxyBase`1[[System.__Canon, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]].ProcessNativeCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, System.__Canon, Boolean, Microsoft.Management.Infrastructure.Native.MiResult, System.String, Microsoft.Management.Infrastructure.Native.InstanceHandle)
   at Microsoft.Management.Infrastructure.Internal.Operations.CimAsyncMethodResultObserverProxy.InstanceResultCallback(Microsoft.Management.Infrastructure.Native.OperationCallbackProcessingContext, Microsoft.Management.Infrastructure.Native.OperationHandle, Microsoft.Management.Infrastructure.Native.InstanceHandle, Boolean, Microsoft.Management.Infrastructure.Native.MiResult, System.String, Microsoft.Management.Infrastructure.Native.InstanceHandle)
   at Microsoft.Management.Infrastructure.Native.ExceptionSafeInstanceResultCallback.InvokeUserCallback()
   at UserFilteredExceptionHandling.UserFilteredExceptionMethod(System.Action, System.Func`2<System.Exception,Boolean>, System.Action`1<System.Exception>)
   at Microsoft.Management.Infrastructure.Native.ExceptionSafeCallbackBase.InvokeUserCallbackAndCatchInternalErrors()
</Data>
</EventData>
</Event>
Log Name:      Application
Source:        Application Error
Date:          22.08.2019 13:20:18
Event ID:      1000
Task Category: (100)
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      XXXXXXXXXX
Description:
The description for Event ID 1000 from source Application Error cannot be found. Either the component that raises this event is not installed on your local computer or the installation is corrupted. You can install or repair the component on the local computer.
If the event originated on another computer, the display information had to be saved with the event.
The following information was included with the event:
ServerManager.exe
6.3.9600.17238
53d0b3e7
KERNELBASE.dll
6.3.9600.19425
5d26b6e9
e0434352
000000000000908c
2090
01d558db910e2803
C:\Windows\system32\ServerManager.exe
C:\Windows\system32\KERNELBASE.dll
d1d0f033-c4ce-11e9-811b-0017a477280e
The handle is invalid
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Application Error" />
    <EventID Qualifiers="0">1000</EventID>
    <Level>2</Level>
    <Task>100</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2019-08-22T11:20:18.000000000Z" />
    <EventRecordID>876182</EventRecordID>
    <Channel>Application</Channel>
    <Computer>XXXXXX</Computer>
    <Security />
</System>
<EventData>
    <Data>ServerManager.exe</Data>
    <Data>6.3.9600.17238</Data>
    <Data>53d0b3e7</Data>
    <Data>KERNELBASE.dll</Data>
    <Data>6.3.9600.19425</Data>
    <Data>5d26b6e9</Data>
    <Data>e0434352</Data>
    <Data>000000000000908c</Data>
    <Data>2090</Data>
    <Data>01d558db910e2803</Data>
    <Data>C:\Windows\system32\ServerManager.exe</Data>
    <Data>C:\Windows\system32\KERNELBASE.dll</Data>
    <Data>d1d0f033-c4ce-11e9-811b-0017a477280e</Data>
    <Data>
    </Data>
    <Data>
    </Data>
</EventData>
</Event>

Log Name:      Application
Source:        Windows Error Reporting
Date:          22.08.2019 14:09:14
Event ID:      1001
Task Category: None
Level:         Information
Keywords:      Classic
User:          N/A
Computer:    xxxxxxxxxxxxx
Description:
Fault bucket , type 0
Event Name: CLR20r3
Response: Not available
Cab Id: 0

Problem signature:
P1: ServerManager.exe
P2: 6.3.9600.17238
P3: 53d0b3e7
P4: Microsoft.Windows.ServerManager.Common
P5: 6.3.9600.17238
P6: 53d0b3ba
P7: 1373
P8: 1c6
P9: System.ArgumentException
P10:

Attached files:

These files may be available here:
C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_ServerManager.ex_e1484b7fdd6fa16594f5f75d461e448c5927fa8_cba6274c_22c0aaad

Analysis symbol:
Rechecking for solution: 0
Report Id: 1f82320a-c4d5-11e9-811b-0017a477280e
Report Status: 2048
Hashed bucket:
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
    <Provider Name="Windows Error Reporting" />
    <EventID Qualifiers="0">1001</EventID>
    <Level>4</Level>
    <Task>0</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2019-08-22T12:09:14.000000000Z" />
    <EventRecordID>876204</EventRecordID>
    <Channel>Application</Channel>
    <Computer>xxxxxxxx</Computer>
    <Security />
</System>
<EventData>
    <Data>
    </Data>
    <Data>0</Data>
    <Data>CLR20r3</Data>
    <Data>Not available</Data>
    <Data>0</Data>
    <Data>ServerManager.exe</Data>
    <Data>6.3.9600.17238</Data>
    <Data>53d0b3e7</Data>
    <Data>Microsoft.Windows.ServerManager.Common</Data>
    <Data>6.3.9600.17238</Data>
    <Data>53d0b3ba</Data>
    <Data>1373</Data>
    <Data>1c6</Data>
    <Data>System.ArgumentException</Data>
    <Data>
    </Data>
    <Data>
    </Data>
    <Data>C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_ServerManager.ex_e1484b7fdd6fa16594f5f75d461e448c5927fa8_cba6274c_22c0aaad</Data>
    <Data>
    </Data>
    <Data>0</Data>
    <Data>1f82320a-c4d5-11e9-811b-0017a477280e</Data>
    <Data>2048</Data>
    <Data>
    </Data>
</EventData>
</Event>

↧

issues reaching or downloading from https from Hyper-V guests

August 22, 2019, 10:15 am

≫ Next: Virtual Machines not utilizing NUMA Node

≪ Previous: Server Manager crashes on every Server OS (2012 R2, 2016, 2019)

Hi,

We have a server running Windows Server 2019 Standard with Hyper-V. The machine contains 4 Intel X722 LAN ports (on a single card) in a LAN team, functioning as a Virtual Switch. Also the machine contains 2 Intel i350 LAN ports, forming a team for LAN access as well.

Multiple guest OSes are running on this HV host, all of them being Server 2019. All guests experience issues visiting secure websites, sometimes with downloading, have a lot of certificate related issues, ... Some web sites can't be visited at all.

When visiting these from the HV host, everything is fine although it's the same OS.

Earlier we had issues reaching all servers (host and guests) using Teamviewer, but this was solved after applying the fix as mentioned in https://forums.lenovo.com/t5/ThinkSystem/SR630-amp-Intel-X722-issue-with-Windows-Server-2019/m-p/4442619#M867

At this point we have very good performance on our guests but suffer from issues with about anything that smells like using certificates, https traffic, ... For example the Belgian website waterinfo.be is not reacheable from within a guest, but is visited fine from the host.

Time and date settings are OK, all in sync with the domain controller (one of the guests), apps run fine, documents open without issues, SQL Server running nicely and fast ...

We're at the end of our inspiration and hope to get some new here :-)

Thanks

↧

Virtual Machines not utilizing NUMA Node

August 23, 2019, 1:06 am

≫ Next: hyperv replica

≪ Previous: issues reaching or downloading from https from Hyper-V guests

Hi,

I have a dell R720 configured as a VDI virtualization host, hosting approximately 30 Windows 10 VMs. Specs are as follows:

Intel Xeon CPU E5-2650 v2 @ 2.60Ghz

2 sockets

16 cores

32 logocial processors

192GB Ram

The problem I'm facing is when assigning 32 vCPU to some of the virtual machines, the VM is not detecting the second NUMA Node and socket, and just uses the one, resulting in performance issues with startup times and CPU usage.

When a VM has 32 logical processors assigned and is using 1 NUMA nodes and socket, I receive event ID 3056:

'VM_NAME' is configured to have a different non-uniform memory architecture (NUMA) topology to that of the physical machine. Some virtual processors are accessing memory on a remote NUMA node. This configuration is not recommended because it will reduce performance

There are some virtual machines that are able to use all numa nodes and doesn't seem to generate the error, which is strange as the vms are using the same master image.

How can I set these vms to use all numa nodes and sockets when assigning 32 logical processors? I normally configure all vms with maximum virtual processors then adjust restriction in the VM settings.

↧

hyperv replica

August 23, 2019, 1:22 am

≫ Next: Cannot reconnect to VM once initial connection is closed

≪ Previous: Virtual Machines not utilizing NUMA Node

Hi guys,

can someone please advise on how to configure hyper-v for replication between a cluster 2 nodes in mainsite and a standalone hyper-v in the DR site.

Regards,

↧

Cannot reconnect to VM once initial connection is closed

August 23, 2019, 4:48 am

≫ Next: Hyper V- connecting to host drives

≪ Previous: hyperv replica

I have a windows 10 enterprise x64 (10.0.15063) hyper-v host and a windows 10 pro x64 (10.0.18362) hyper-v guest. Both run windows defender and no other anti-virus. All has been working fine until today, I see this behaviour:

- The guest starts up in the hyper-v console and I can connect using RDP or the built in window from the management console. All is good.

- I can minimize the session and re-store, all is good.

- If I close the remote desktop session then the vm is in a strange state. I cannot reconnect to it or shut it down, my only choice is to turn off the VM (!) then restart it and again and only then is it ok again. (I see this exact same behaviour when connecting directly from the hyper-v console).

The only thing that I am aware of that's changed is that a windows update ran on the guest (to get me to the version listed above).

Please let me know if this is a known issue or what I can check on the vm that could cause this?

↧

Hyper V- connecting to host drives

August 23, 2019, 4:49 am

≫ Next: VM with disk on SMB3 share has good read but bad write speed

≪ Previous: Cannot reconnect to VM once initial connection is closed

Hi all,

Just set up a windows 7 vm on windows 10 host. I am wondering since enhanced session mode is not available for my VM, what are my options to connect to host drives so I can access host usb-ports and printers?

↧

VM with disk on SMB3 share has good read but bad write speed

August 23, 2019, 8:18 am

≫ Next: V-servers won't load hypervisor not running

≪ Previous: Hyper V- connecting to host drives

Hi All,

I've got a Hyper-V Node connected to a Windows FileServer (all Server 2016) via 2x10Gb on the node and 4x10Gb on the FileServer.

During testing I've removed all NIC teaming with no effect but bot machines are doing multichannel as expected.

But when I now run CrystalDiskMark on the VM it shows up to 1800MB/S _read_ but only 150MB/R _write_.

This can be also watched on the network side as the FileServer NICs are not show much traffic during write.

Any Idea how I can track that down? Measured already Read/Write on the fileserver but this is good (RAID100 SSD with 6K MB read and 1k MB write).

If I just manually copy some files to the fileshare the transfer runs around 600MB/S.

Daniel

↧

V-servers won't load hypervisor not running

August 24, 2019, 2:03 am

≫ Next: Host Windows Server 2016 standard OEM, 2 VM's with 2016 standard OEM - cannot activate? 0xC004FD03

≪ Previous: VM with disk on SMB3 share has good read but bad write speed

After converting my main disk from MBR to GPT and in the process switching to UEFI, I can no longer run the virtual machines on my hyper-V server because the hypervisor is not running.

My understanding is that the hypervisor is started during boot and that because I have switched boot method it is now not started. How do I fix this?

↧

Host Windows Server 2016 standard OEM, 2 VM's with 2016 standard OEM - cannot activate? 0xC004FD03

August 24, 2019, 5:08 am

≫ Next: How to merge snapshots without having downtime

≪ Previous: V-servers won't load hypervisor not running

Can someone please explain the correct activation and rules for the VM's. With the standard edition you can not use AVMA, supposedly you use the same OEM key you activated on the host. When I try to use the key I got the 0xC004FD03 error. I used telephone activation for the 1st VM. When I activated the Host I answered 1 computer, apparently you answer 0 for the first activation, 1 for the second (VM1) and 2 for the third (VM3). When I use 2 I get the error. BTW I did try the AVMA keys first before I tried the OEM key. My OEM is useless and keeps telling me to use AVMA but I do not have the datacenter version of windows server 2016 to use as the virtulization server. It seems that this problem is very common and Microsoft should clarify how to fix it! I have seen some vage info that the OEM should supply keys or authorize guests but I have not been able to get this done.

Thanks in advance for any help.

↧

How to merge snapshots without having downtime

August 27, 2019, 1:20 am

≫ Next: Hyper-V host with Enable Live Migration doesn't listen 6600 port

≪ Previous: Host Windows Server 2016 standard OEM, 2 VM's with 2016 standard OEM - cannot activate? 0xC004FD03

We have VMs with snapshot what I generally like but if the host fails to boot and we need to restore the VHD files to a new machine we would have to merge with the snapshots.

Is there an easy way to recover a VM with snapshots or/and merge a snapshot with a VM without any down time?

↧

Hyper-V host with Enable Live Migration doesn't listen 6600 port

August 27, 2019, 6:26 am

≫ Next: issues with assigning virtual adapter

≪ Previous: How to merge snapshots without having downtime

Hi guys, I have Hyper-V host and Enabled Live Migration but my host doesn't listen 6600 port. What could be the problem?

↧

issues with assigning virtual adapter

August 27, 2019, 11:55 am

≫ Next: Bulk creating hyper V virtual machines

≪ Previous: Hyper-V host with Enable Live Migration doesn't listen 6600 port

Hi,

I upgrade HOST from 2012 to 2019.

Have some issues with networking...

I assigned static IP to the card in yellow...

Created 2 virt switches #54 VMs only. #55 Manage

When attach any to VMs NIC, I get APIPA address.

What I am missing?

Thx.

--- When you hit a wrong note its the next note that makes it good or bad. --- Miles Davis

↧

Bulk creating hyper V virtual machines

August 29, 2019, 3:44 am

≫ Next: Cloning Hyper V vm

≪ Previous: issues with assigning virtual adapter

I am trying to mass create somewhere in the range of 50 to 150 virtual machines on Hyper-V server 2019. I know that the best way to do that without SCVMM is PowerShell, but I know literally nothing about PowerShell. I have looked at scripts online, but none of them have worked for me and they have all been very complicated and hard to understand.

The required specs of the VMs are listed below.

Windows 10 pro

2gb ram with dynamic memory

An iso located on the server on the c drive

all 12 NICS activated and connected to an external switch

1 vCPU

70gb VHD.

Can you help me come up with a script that will meet the following requirements that I can run to create the machines?

↧

Cloning Hyper V vm

August 29, 2019, 1:02 pm

≫ Next: Hyper-V is not on the list in "Turn Windows features on or off"

≪ Previous: Bulk creating hyper V virtual machines

I have a sysprepped windows 10 VM that I would like to clone 100 times in Hyper-V server 2019. however I cannot figure out how to do it. I know that powershell is the way to go, but I'm a powershell idiot. I need to know the absolute easiest way to do this. I have lost hours of sleep over this issue. it is driving me insane.

thank you for your kind support

↧

Hyper-V is not on the list in "Turn Windows features on or off"

August 29, 2019, 2:21 pm

≫ Next: Hyper-v VM kernel panic after deleting snapshots

≪ Previous: Cloning Hyper V vm

Hi,

I cannot find the Hyper-V at:

1. The list in "Turn Windows features on or off".

2. mmc -> add/remove snap-ins.

I also tried to enable intel's virtual machine to see if it will give me the option to have hyper-v.

How can I find the place to enable hyper-v ?

↧

Hyper-v VM kernel panic after deleting snapshots

August 31, 2019, 8:01 am

≫ Next: OPC connection will not initialize unless logged in to server

≪ Previous: Hyper-V is not on the list in "Turn Windows features on or off"

We have a ubuntu 16.04 vm running on hyper-v (I believe on windows server 2012). It had like 3-4 snapshots. I was trying to export it but due to # of snapshots (which had been running for a long time) it was too large. I powered down the vm, deleted the snapshots (through the gui), saw that the vhdx files had merged, then exported it. I later powered on the vm and it failed to boot properly and displayed an error message that said there was kernel panic.

One thing we've done is we've booted the vm with ubuntu disk iso and we were able to successfully mount the old filesystem. It seems the files are all there. My boss suspects the bootloader is corrupt somehow so we're currently running fsck. If anyone has any other suggestions for saving the vm that would be great.

I was wondering, based on the above info, what could have possibly caused the issue? Deleting snapshots should be "safe" so there's probably gonna be some paranoia about deleting snapshots until we can figure out the reason.

↧