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any limits with hyper-v throughput?? High disk queue to SAN but network and SAN usage is low.

i have a 5 node Hyper-v cluster running server 2012 r2. I have always had a latency problems that we have never been able to solve. 

We took a second look at the fiber channel connection to the SAN and found a report that was stating that of the total bandwidth available each port was using less than 5%. there are 20 Servers per node and about 150 users in terminal server sessions so
that number should be much higher i would think.

The only thing we can think of is some limit set by windows/Hyper-v/Failover cluster manager for how much or how fast data can be written.

Is there such a thing or if anyone has any advice on where to check i would greatly appreciate it.

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"Hyper-V Hypervisor" and "Hyper-V Services" options in Windows 10. What do they do?

Hi all;

When enabling Hyper-V role in Windows 10, we have the following options:

  • Hyper-V Hypervisor
  • Hyper-V Services

As you know, non of them depends on each other, because we can select each one and the system does not show us any warnings or does not select the other option automatically. Now, my question is:

What does this options do by themselves?

Thanks


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Get serial number/service tag of the host machine within Ubuntu guest VM (Hyper-V) machine.

How to get serial number/service tag of the host machine within Ubuntu guest VM (Hyper-V) machine?  The virtual machine (Ubuntu 16.04) is running on Hyper-V Windows 10 Pro.

Thanks in advance!

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Windows 10 VMs not showing interactive session from console but Windows 7 VMs do? Also VM locks when workstation locks?

Hello

1. When using Hyper-V manager to connect to our server we can see the Win7 VMs when someone is logged into them. We only see the lock screen on Win10 VM when someone is logged in.

2. If the workstation running Hyper-v manager locks and someone else has a remote connection running inside the Hyper-V Win10 VM, that connection is affected. This does not occur in the Win7 VMs.

I compared VM level settings and am not seeing anything different short of storage location. I assume it is an OS related setting.

Any help is greatly appreciated. Thanks in advance.


~Nick

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hype v help

hey I was making a ubuntu vm. I went though the wizard and then it said it needed to shut down but it didn’t so I pressed stop service and it deleted or got rid of my two machines, I had a windows one as well.

please help!

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Unable to reverse replication (Replica server failed to authorize the connection)

Hello!
I’m working on a project that will require me to fail a LOT of Hyper-V VMs from one host to another at hundreds of remote sites.

Hosts are all on Server 2012 (not r2), domain joined, and I have local admin rights on all boxes, using a domain account.

I’m transferring VMName from Host02 to Host01, as part of the following test:

During prep testing, I’ve found that quite a few that are replicating without any issue whatsoever, but when I try to reverse the replication, I receive an error saying, 

Replica server 'HOST02' failed to authorize the connection. Check the Replica server for appropriate access permissions

(Event ID 29232 on Host01) and, 

Hyper-V failed to enable reverse replication for 'VMName': General access denied error (0x80070005). (Virtual Machine ID 9A0D1D89-554A-4B46-996B-EC047601DC06)

(Event ID 32068 on Host01) With the additional info on the popup in the Reverse replication wizard:

"Replica server Host02 failed to authorize the connection. Check the Replica server for appropriate access permissions"

I did read this post (Link is below, can’t post links yet), but I don’t have event ID 29284.

https://social.technet.microsoft.com/Forums/ie/en-US/c41ee7be-4fa2-47f7-a14c-170fbbb36ee6/alternative-reason-for-replica-server-failed-to-authorized-the-connection-error-80070005?forum=winserverhyperv

Any ideas?

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an error occurred while trying to retrieve a list of virtual switches

Hello all

Trying to install Hyper V machines to win server 2012

ANd i activated the Hyper V role and assigned the network card of the server to be used a virtual card for the virtual machines.

BUt when i add the machines i get the not connected option for the machines.

And when accessing the switch manager i get the error 

an error occurred while trying to retrieve a list of virtual switches.

http://prntscr.com/lr0ndm

Please help, stuck on this for a week now. Tried almost all the tricks found on the net.

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an error occurred while trying to retrieve a list of virtual switches

Hello all

Trying to install Hyper V machines to win server 2012

ANd i activated the Hyper V role and assigned the network card of the server to be used a virtual card for the virtual machines.

BUt when i add the machines i get the not connected option for the machines.

And when accessing the switch manager i get the error 

an error occurred while trying to retrieve a list of virtual switches.

http://prntscr.com/lr0ndm

Please help, stuck on this for a week now. Tried almost all the tricks found on the net.

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After Deleted some files in Disk driver , the free space increased in drive inside of the VM . but its not replicating or increase the free space while inspect the VHD

Hi All,

After Deleted some files in Disk driver , the free space increased in drive inside of the VM . but its not replicating or increase the free space while inspect the VHD. So VMs are went to pause state. Kindly help to resolve the issue 

OS and role : Windows server 2012 R2 with Hyper-v 

Cluster :- 20 node fail over cluster  

Regards

V.P.Neelakandan

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Windows server 2016 on a VHDX Gen1 with IDE boot disk works, but is not allowed?

Hi,

I would like to clear one thing out, I have In-place Upgraded Windows 2012 R2 to server 2016 on a VHDX Gen1 with IDE boot disk, and I have installed a fresh Windows server 2016 on a VHDX Gen1 with IDE disk. Maybe not the best bot it look like it works. The
question is that we have some server 2012 R2 Gen1 VMs with IDE disk. We would like to in-place upgrade them to server 2016. But if you read the specification for server 2016 you can read Windows Server 2016 does not allow ATA/PATA/IDE/EIDE for boot, page,
or data drives. Does it works for me because it is Hyper-V VM or it works but not supported?

Storage controller and disk space requirements

Computers that run Windows Server 2016 must include a storage adapter that is compliant with the PCI Express architecture specification. Persistent storage devices on servers classified as hard disk drives must not be PATA. Windows Server 2016 does not allow
ATA/PATA/IDE/EIDE for boot, page, or data drives.

Ref:
https://docs.microsoft.com/sv-se/windows-server/get-started/system-requirements


/SaiTech

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