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Hyper-v

Switch Embedded Teaming and Windows 2019 NIC issue

Hey all,

I’ve been trying to enable Switch Embedded Teaming on Windows 2019 [Version 10.0.17763.107] using the below command:

New-VMSwitch -Name SETSwitch -NetAdapterName "em1","em2","em3","em4" -EnableEmbeddedTeaming $true -AllowManagementOS $true

The command executes successfully and creates the virtual switch but breaks the NICs.  In device manager they are shown with an exclamation mark and under details show the below error:

"The device cannot start. (Code 19) {Operation Failed} The requested operation was unsuccessful."

I have tried updating the NIC firmware and upgrade/downgrade of driver with no luck.  

I have also tried the exact same process on Windows 2016 on the same hardware and it works perfectly.

The hardware is a Lenovo SR650 and NIC is Intel X722 1GbE.

Any ideas as to what’s going wrong?

Thanks,

Mike

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Nvidia Quadro P4000 DDA Error Code 43

Hi

We use a Nvidia Quadro P4000 on a HPE DL380 Gen10 with Windows Server 2016 Hyper-V and Passtrough the Card with
DDA to a Windows Server 2016 VM.

W’ve installed the latest drivers. But after a while, without any user input, the card shows the error code 43.

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Nvidia Quadro P4000 DDA Error Code 43

Hi

We use a Nvidia Quadro P4000 on a HPE DL380 Gen10 with Windows Server 2016 Hyper-V and Passtrough the Card with
DDA to a Windows Server 2016 VM.

W’ve installed the latest drivers. But after a while, without any user input, the card shows the error code 43.

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Command or script to uncheck/disable Backup (volume shadow copy) inside Hyper V’s Integration Services

Hi,

BackupAssist could not back a VM SQL server if Backup (volume shadow copy) is checked inside the Hyper V/Integration Services. Can you help with a command or script to stop/uncheck Backup (volume shadow copy)?

Thank you so much.

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Windows Server 2012 R2 Benchmark

Hi,

I have a question regarding a benchmark of a Hyper-V with DiskSPD. I’m having a HPE DL308 Gen10 with 2x Intel Xeon 6134 @3,2GHz (each with 8-cores/16threads). I’m using
the newest version (DiskSPD-2.0.21a). I tried to benchmark this server but I despair. I’m confused because the results in Total I/Os and latency aren’t good in any way. This isn’t the first server I’m benchmarking, so I’m intimate with the use of DiskSPD.
I was trying now for several days to benchmark this server, but it’s impossible to get an result which is "okay". My question is: how it is possible to benchmark only 1 or both processor/s. I am not able to tell DiskSPD which processor I’m trying
to benchmark. When configuring the cores in the parameters DiskSPD is using processors across the system. It is not clearly which processor DiskSPD is using. It would be nice if anyone could give me an advice towards solving my problem, or could tell me where
I can clearly see which processor (thread of which processor) is in use. Maybe someone also have got this problem and already solved it by editing the parameters.

I would really appreciate if someone could help me solving this problem.

Best regards,

Chris

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Why multicast is being disabled for Virtual Switches?

Hello,

I use Hyper-V on Windows 10 for Docker.

Both Default Switch, and Docker created switches get EnableMulticast set to 0 after reboot. This prevents link-local name resolution from working. This seems to happen only on this machine, other machines (perhaps running older versions of Windows 10) do
not experience this.

What is setting this value and how to prevent this?

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Cant remote manage Hyper-V host

Hi 

I have a Hyper-V host for my lab environment, i can connect using RDP and PS remoting but i cant use RSAT. 

The host is non domain or workgroup join but my manage computer is domain join whit another domain.

I tryded this:

https://tweaks.com/windows/67216/remotely-manage-a-nondomain-hyperv-server/

But i still get cant logon to it. Is it because management pc i domain join?

Did turn off all the FW but it didn’t help 🙁

/Johan

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Hyper-V Virtual Machine Management Service doesn’t respond, cannot stop/restart

Hello, I’ve been running a functioning virtualization set on a small Server 2016 install, running a half dozen VMs. Everything was working fine for months, but I let Windows update last night and when it rebooted suddenly none of the VMs would startup. When
I attempted to check them with the management tool it tells me it’s connecting to the Hyper-V Virtual Machine Management Service, and it never stops saying that except to sometimes say it cannot be reached. This is all locally on the server, not remotely.
This has not happened in the past. When I attempt to stop or restart the Hyper-V Virtual Machine Management Service it takes a long time and then ends with Error 1503 saying that it cannot stop the service as it took too long to respond.

I tried rolling back the update, and that changed nothing unfortunately. This is pretty disastrous for me, hopefully someone can help me out!

Edit: As far as I can tell none of the VMs boot, none appear to be on the network switch, and I cannot access them through any means.

The Get-VM command hands powershell, and whether the service is stopped or not (which is does eventually stop after 10+ minutes) the network switch information in the Hyper-V configuration area for switches never becomes available.

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Resource control with clustering

I have another question - Can we somehow configure VM RAM and CPU resources for fail over

For example if VM1 has 8 GB RAM and 4 CPU on NODE 1 and when it fails over to NODE2 i want to change the RAM to 4 GB and 2 CPU

Is this somehow possible with hyper v clustering ?

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How to access vmms.pdb for vmms.exe 10.0.14393.2248

Hi,

Would you please advise how to access the symbol vmms.pdb for vmms.exe 10.0.14393.2248 ?

The symbol for vmms.exe isn’t able to be accessed through http://msdl.microsoft.com/download/symbols.

I found this blog, and expecting for some way to access the hyper-v symbols : 

https://blogs.technet.microsoft.com/virtualization/2018/04/25/hyper-v-symbols-for-debugging/

Regards, Toshi

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