Hello,

I have two Windows 2008 x64 servers, running Hyper-V.  I have about 15 VM's on each server.  I manage the VM's all through the Hyper-V Manager.  When I try to connect to Hyper-V Manager and manage my VM's I get "Connecting to Virtual Machine Management Service."  This times out after a few minutes and then the Hyper-V Manager displays:  The operation on computer 'localhost' failed.

This happens about 2-3 weeks after a reboot.  The only fix I have found is to reboot the server, but since these are production servers this is kind of a pain.

My hosts have 48GB RAM and two pCPUs giving me two NUMA nodes, and I have five VMs that need to run on each, four with 9100MB RAM and one with 7000MB. This should fit, and usually does. Prior to migrating to Hyper-V these hosts were running XenServer 5.5, which was not NUMA aware (and possibly had a lower memory overhead than Windows anyway), and I could always get all the VMs powered on, no problems. They were probably spanning all over the NUAM nodes, but performance was OK so I didn't care.

Then I moved a couple of hosts to 2012 (not R2) and ran the VMs in Hyper-V. Because Hyper-V is NUMA aware I thought it'd be nice to take advantage of this so I split the 7000MB VM into two smaller ones, and assigned one of those plus two of the larger VMs onto each NUMA node. I assigned the VMs to the NUMA nodes by using WMI http://rcmtech.wordpress.com/2013/08/12/set-hyper-v-2012-vm-numa-node/

2012 R2 seems to have changed/removed the ability to configure a VM to sit on a particular NUMA node though, as the above doesn't work anymore.

So now I'm experimenting with the various "allow to span NUMA" tickboxes that you get the for the host and the VMs, but with mixed success. I've gone back to five VMs, but can frequently only get four to power on, the fifth saying "not enough memory", yet on other hosts all five are running. Try the VM again later and it might power on, it might not. It seems pretty random, I've done a lot of testing with various combinations of the "allow numa spanning" setting for the VMs and it seems to not make much difference. Once I was only able to get three VMs to power on...!

What I would assume (hope) is that if the hostand VMs are all set to allow NUMA spanning, they should all power on, as the final VM will end up spanning across the two nodes even if the other four have been placed entirely within a node. but this doesn't seem to happen consistently.

The hosts that do have all five VMs running show about 2-3GB free RAM.

So can anyone offer any advice? Am I doing something daft? There must be something going on that I'm not aware of or not taking into account. I don't like inconsistent behaviour.

Thanks in advance!

I've been able to reproduce this on two separate hosts (both Win 8.1 Pro) running Gen 2 Windows Server 2012 VMs. I believe it is after the December 2012 round of updates (and I'm trying to confirm which specific one), the VMs fail to boot, indicating that applying a patch failed and it is reverting the changes -- it enters a reboot loop which I'm unable to get out of.

Has anyone else experienced this with Gen 2 Server 2012 VMs?

Trevor Seward, MCC

This post is my own opinion and does not necessarily reflect the opinion or view of Microsoft, its employees, or other MVPs.

2012R2, Two Compute Nodes, and a SAS JBOD. System Center 2012R2, Cluster in a Box.

The Cluster-in-a-Box (DataOn 9220) is basically just two compute nodes with redundant, dual ported SAS connections to a JBOD (SES) enclosure. It’s just crammed into one 2U box with redundant power.

I've got some questions, how might YOU do it? ve been playing around with multiple approaches and would like to know what the community might think.

Each of the two nodes (node H0 and node H1):
Server 2012R2 Datacenter
256 GB RAM
(2x) 2.0GHZ Xeon 2650V2 8-Core
LSI 9207-8i 6G SAS HBA
128GB Mirrored SSD boot drives
Dual-port Intel X540-T Copper 10 gig NIC. Teamed and connected to 10gb copper switch.
Single port Intel i350 1 gig Internal Cluster Interconnection

12 3.5” drive bays filled with:
(8x) 4TB 7200 6G Near line, Dual port SAS
(4x) 200GB SSD 6G SAS

This is a SMB where we need capacity over IOPS. No high-performance stuff. HA/Fault-tolerance of drive/single node failure is important. Guest clustering will probably be used for HA guests.

So far:
Setup Windows Failover Clustering for both nodes (H0 and H1).
Setup single Storage Pool using all 12 disks. Created 3 Virtual Disks: CSV-VD1 (5TB, attached to node H0), CSV-VD2 (5TB, attached to node H1), CSV-Witness (1GB, attached to node H0).
CSV-VD1 & CSV-VD2 are 3-way mirrored with SSD storage tiering.

Cluster Network 1 – 20G Team, Cluster and Client use.
Cluster Network 2 – 1G Internal, Cluster use only.

On H1:
Single virtual switch for VM connectivity, connected to the ‘Microsoft Network Adapter Multiplexor Driver’ (the 20G team).
Two VMs:
DB01, running 2012R2 and SQL 2012 SP1.
SCVMM01, Running 2012R2 and System Center VMM 2012R2

Questions, so far:
I’ve got the dual-port 10G NICs teamed on each node. Is this the best approach, how should I go about creating separate VLANs ‘within’ the TEAM for different functions (Live migration, management, etc).

I’ll be back with more, just wanted to get this posted. Thanks.

Host: 2012 R2

VMs: 2008 R2, 2012, 2012 R2

Systems has been running fine until I decided to update my VMs a few days ago with the Dec 10th updates.  2008 R2 VMs update no problem, 2012 R2 VMs update no problem, but 2012 VMs fail to update.  I spent 7 hours on the phone with MSFT and they can not figure it out.  They are going to continue working with me, but wanted to post this to see if anyone else was having issues updating their 2012 VMs on 2012 R2 Hyper-V.

The 2012 VMs used to updated just fine until this round of updates.  

To trouble shoot, I discounted all my storage and put a spare HDD into the host and setup up Hyper-V all over again and setup a few test VMs.  Even tested VMs on various storage options and direct connected drives.  Same deal... 2008 R2 and 2012 R2 update, but 2012 will not update.  I even setup 2012 on ESXI and VMWARE Fusion and they both update straight away.  

I'm 3 days into this... head is about to pop :(

Host: Windows Server 2012 R2, Guest: Windows Server 2012 R2

I am trying to drag and drop a file from the host to the guest, but it does not allow this.

The icon on the vm windows indicates I have enhanced session mode working.. i can copy, and paste but just not drag and drop in either direction.

I was under the impression that was possible?

Tim

P.S. The form for posting questions does not work on safari or chrome on an ipad. the body field does not display. I had to use my PC to post this.

Tim

Hi  guys,

Here is my situation. I am running Hyper-V (build 6.1/7601.17514) on a 2008 R2 host (Dell poweredge R710 with 32GB of ram AND Xeons)

This is host to one of my only virtual machines in the environment (Server 2012(terminal server) with 20GB assigned of ram and 500GB of HD Space).

At random times my clients cannot connect to the terminal server with the error that it can't connect and to contact your administrator. When logging into the console through Hyper V - the machine looks 100% fine, has internet access and can see the rest of the network. (attempted to connect with both IP of the box AND FQDN/hostname)

The weird part is - a reboot of the VM seems to fix everything and go back to normal - but I don't want to have to reboot the box every day for it.

The only thing I could find in the event logs of the box was  the following:
Miniport NIC "Microsoft Hyper-V Network Adaptor Disconnected"

And 7 minutes later that it had connected

I hope this is enough information.

Cheers
Luke

My whole domain is suffering from some massive time settings issues. I really need some feedback on how to resolve this.

First off let me give you the layout of my domain:

Hyper-V Host 1 - Hosting: DC01, MISC VMs

Hyper-V Host 2 - Hosting: DC02, MISC VMs

Now let me show you what my goal is:

DC01 - Primary Time Server, SYNC Time Externally
DC02 - Sync with DC01

HYPER-V HOST 01 - Sync with DC01
HYPER-V HOST 02 - Sync with DC01

MISC - Sync with DC01

Note: Should DC02 also offer time? Or sync with DC01 as all others?

Now the issue I am facing when attempting to tell my servers to sync with the domain controller or anything externally, they simply do not seem to change settings.

I attempted to run this on the Hyper-V Host:

w32tm /config /syncfromflags:domhier /update
net stop w32time
net start w32time

Then I did a query for the settings:

w32tm /query / source

Result: Local CMOS Clock

None of my servers, desktops etc... will change who they sync with... I even attempted to setup each server to just sync with any public time provider and the settings never seem to take any effect.

I tried resetting the time service settings to default:

net stop w32time
w32tm /unregister
w32tm /register
net start w32time

In the end nothing is working out for me. I can no longer RDP to my Hyper-V servers as they time is "off" and even when setting the times manually it makes no difference. 

Any help would be appreciated!

Thank You

Hi all,

NetMap is a framework for high-performance direct-to-hardware packet IO, offering low latency and high PPS rates to userland applications while bypassing any kernel-side packet processing.

I am using a custom linux on Hyper-V and trying to add netmap support in it after coming to know about its features.

Do we have netmap supported in Hyper-V network driver(netvsc)?

Is anyone working on integrating netmap support for hyper-v network drivers ?

Thanks in advance,

Saleem

Hi

I've got a Windows 8.1 machine that is connected to a domain on the LAN.

Before I installed Hyper-V the network showed up as "Domain Network" in the network and sharing center but when I installed Hyper-V I created a virtual switch (external) and since then the network has shown up as "Private Network".

This is on the Windows 8.1 host and the machine has full access to the LAN and the Internet and is using the domain for logins and permissions, which allows me to browse file shares on other machines on the network without having to sign-on. Most of the time I'm not even running any virtual machines on the PC, I have Hyper-V for testing websites on different versions of IE.

The only problems I have are the network type not being detected correctly, my local firewall blocking lots of stuff I run on it (due to the firewall rules all being set up for a domain network) and also when I RDC to another machine it refuses to use saved credentials as it can't identify the machine (I don't know if this is related to the domain network problem).

Has anyone any suggestions what could be going wrong or how I can diagnose the problem?

Thanks

Dears ,

I'd like to find a log in the event logs about creating  new Virtual machine   , please check  with us.

I have been using the Hyper-V betas flawlessly but ever since using the Hyper-V RC, I have had a ton of problems.  I cannot seem to reliably create a VM and try to start it.  If I try to create a VM without connecting it to a Network I get:

[Window Title]
New Virtual Machine Wizard

[Main Instruction]
The server encountered an error while configuring memory on Test. Wizard failed in rolling back the created virtual machine. Please delete it manually afterwards.

[Content]
Failed to add device 'Microsoft Synthetic Ethernet Port'.

[Expanded Information]
'Test' failed to add device 'Microsoft Synthetic Ethernet Port'. (VMID 209E241A-2FAF-4B59-8312-5D55B521B409)

The Virtual Machines configuration 209E241A-2FAF-4B59-8312-5D55B521B409 at 'C:\HV\Hyper-V' is no longer accessible: The requested operation cannot be performed on a file with a user-mapped section open. (0x800704C8)

Hide details  [Close]

After this error the VM is gone from the UI and the Virtual Machine Management Service is stopped.  The Event Log for VMMS shows Error events with IDs 16410 and 14140.

If I create a VM connected to the network then open up the Settings dialog and save it then it at least will not get removed right away.  However, when I try to start it I get:

[Window Title]
Hyper-V Manager

[Main Instruction]
An error occurred while attempting to change the state of virtual machine Test.

[Content]
'Test' failed to start.

Microsoft Synthetic Ethernet Port (Instance ID {CF502D0E-D34B-49DF-9785-704B8755645E}): Failed to Power On with Error 'The specified network resource or device is no longer available.'

[Expanded Information]
'Test' failed to start. (VMID 2B01ED2B-FF89-4E16-9011-6BA6E7565535)

'Test' Microsoft Synthetic Ethernet Port (Instance ID {CF502D0E-D34B-49DF-9785-704B8755645E}): Failed to Power On with Error 'The specified network resource or device is no longer available.' (0x80070037). (VMID 2B01ED2B-FF89-4E16-9011-6BA6E7565535)

Hide details  [Close]

After this the VMMS is stopped and the VM is removed from the UI the next time I start the VMMS.

These errors have made Hyper-V pretty much unusable for me.  Does anyone have some help on what might be causing this?  I have rebuilt the server from bare metal twice now and removed and reinstalled the Hyper-V role numerous times trying to get it to work.  The server is a Dell 2970 with the latest BIOS and drivers.

Thanks,

Joseph

I have Windows Server 2012R2 with Hyper-V role installed. I,m using network Team.

When the server starts I receive a error - Hyper-V-VmSwitch EventID 106 - in system event log.

Log Name:      System
Source:        Microsoft-Windows-Hyper-V-VmSwitch
Date:          07.01.2014 18:13:48
Event ID:      106
Task Category: None
Level:         Error
Keywords:     
User:          SYSTEM
Computer:      csmavrtcl06.nlb.si
Description:
Available processor sets of the underlying physical NICs belonging to the LBFO team NIC /DEVICE/{CE5C164C-31C5-4EE7-AD31-CC2A1B2E6813} (Friendly Name: Microsoft Network Adapter Multiplexor Driver #2) on switch 25051EB0-C449-4504-A024-DB3F2D16591F (Friendly Name: ClusterSwitch) are not configured correctly. Reason: The processor sets are not identical when LBFO is configured with min-queue mode.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="Microsoft-Windows-Hyper-V-VmSwitch" Guid="{67DC0D66-3695-47C0-9642-33F76F7BD7AD}" />
    <EventID>106</EventID>
    <Version>0</Version>
    <Level>2</Level>
    <Task>0</Task>
    <Opcode>0</Opcode>
    <Keywords>0x8000000000000000</Keywords>
    <TimeCreated SystemTime="2014-01-07T17:13:48.156559500Z" />
    <EventRecordID>3455</EventRecordID>
    <Correlation />
    <Execution ProcessID="4" ThreadID="60" />
    <Channel>System</Channel>
    <Computer>csmavrtcl06.nlb.si</Computer>
    <Security UserID="S-1-5-18" />
  </System>
  <EventData>
    <Data Name="NicNameLen">46</Data>
    <Data Name="NicName">/DEVICE/{CE5C164C-31C5-4EE7-AD31-CC2A1B2E6813}</Data>
    <Data Name="NicFNameLen">47</Data>
    <Data Name="NicFName">Microsoft Network Adapter Multiplexor Driver #2</Data>
    <Data Name="SwitchNameLen">36</Data>
    <Data Name="SwitchName">25051EB0-C449-4504-A024-DB3F2D16591F</Data>
    <Data Name="SwitchFNameLen">13</Data>
    <Data Name="SwitchFName">ClusterSwitch</Data>
    <Data Name="QueueMode">1</Data>
  </EventData>
</Event>

We are a VMWare workshop but interested in the new windows 2012 R2 Hyper-v.  So I've set up a lab with two desktop PC running Windows 2012 R2 to test the Network Virtualization feature.  However when trying to use Powershell to enable it on the NIC, I received an error (see below). 

Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv

Enable-NetAdapterBinding : No matching MSFT_NetAdapterBindingSettingData objects found by CIM query for instances of
the ROOT/StandardCimv2/MSFT_NetAdapterBindingSettingData class on the  CIM server: SELECT * FROM
MSFT_NetAdapterBindingSettingData  WHERE ((Name LIKE 'Ethernet')) AND ((ComponentID LIKE 'ms[_]netwnv')). Verify query
parameters and retry.
At line:1 char:1
+ Enable-NetAdapterBinding Ethernet -ComponentID ms_netwnv
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (MSFT_NetAdapterBindingSettingData:String) [Enable-NetAdapterBinding], C
   imJobException
    + FullyQualifiedErrorId : CmdletizationQuery_NotFound,Enable-NetAdapterBinding

Further, I do not see ms_netwnv as a component of my NIC.  Is there some configuration that I'm missing? 

Thanks a lot!

We have two Hyper-V clusters in two separate datacenters. These datacenters are connected with a 100 Mbit/s redundant connection. Redundancies is achieved with spanning tree and the two sites share the same private IP range. In both datacenters are two domain controllers in the same domain. We use Hyper-V replica to replicate about 50 VM's to the secondary datacenter. We use the primary datacenter as our production environment and the secondary datacenter as our failover location, backup location and test environment. When everything was working and all the servers were being replicated the bandwidth that was used over the WAN connection was about 10 - 15 Mbit/s. We use http for replication.

After a failure, which was caused by a rebooting Hyper-V host (wrong configured automated update settings) several VM's stopped with their replication. After that incident I could not get the replication working properly. I get timeouts errors and other error messages indicating that there is no connection at that moment. The replication works but not all the time. Replication status are going to warning when more than 20% of the replication cycles are missed. Eventually we even see a status of critical on several VM's. After that we have to resume the replication manually.

I have the feeling that this is caused by the limited amount of bandwidth that is available. I had to do a complete new initial replication for some servers because these servers would no longer resume replication after a manual resume command. Even the resynchronization command did not work, so I had to stop the replication and start again. The problem is that the initial replication uses all the available bandwidth and I have the feeling that there is not enough bandwidth left for the regular replication of the other VM's and that this is causing the timeouts. I am however not sure about this theory. Is it possible that initial replications drain so much bandwidth that regular replications are getting timeouts or is there a mechanism that prevents this. Are there possible other causes of these problems?

below you see the error messages that I frequently get. I get these errors on VM's with a normal replication status as well as VM's with a warning status or a critical status.

Hyper-V could not replicate changes for virtual machine 'XXXXX' because the Replica server refused the connection. This may be because there is a pending replication operation in the Replica server for the same virtual machine which is taking longer than expected or has an existing connection. (Virtual machine ID 33F83E0A-843A-4E83-9CD2-92EC7D3E3FEA)

ID: 32552

Hyper-V suspended replication for virtual machine 'VADC01' due to a non-recoverable failure. (Virtual Machine ID 33F83E0A-843A-4E83-9CD2-92EC7D3E3FEA). Resume replication after correcting the failure.

ID: 32086

Hyper-V could not replicate changes for virtual machine 'XXXXX': The device does not recognize the command. (0x80070016). (Virtual Machine ID 33F83E0A-843A-4E83-9CD2-92EC7D3E3FEA)

ID: 32022

Could not replicate changes for virtual machine 'XXXXX' as the Replica server 'cc-hv11.cc.lan' on port '80' is not reachable. The operation timed out (0x00002EE2). (Virtual Machine ID 308792FF-E1E8-4C15-930B-15506C4BF85D)

ID: 29292

Connection to the Replica server 'computer.domain.lan' timed out while waiting to receive a response for virtual machine XXXXX: The operation timed out(0x00002EE2). The total size of replication data being transferred is 65639 KByte(s). (Virtual Machine ID 5A99E295-7E42-4D9E-8814-9469151C7400)

ID: 29312

• Dell R320 Hardware
• Windows Server 2012 R2 Standard with Hyper-V Role enabled (Bare Metal deployment using SCVMM 2012 R2)
• SCVMM 2012 R2 Agent installed
• There is no additional software/anti virus on the system

Problem:

Can't sync the initial replica over the network.  It fails at different percentages along the way.  When I select smaller VHDs such as 500MB it's successful.  But when I select a 10GB VHD it fails out with "Connect to the Replica server timed out while waiting to receive a response for virtual machine.  The operation timed out (0x00002EE2).  The Replica Server is configured on Port 80/HTTP and accepts any host.

After attempting to replicate a VM the Replica server becomes almost unresponsive.  I can't manage the machine.

Any ideas are welcome.

I have successfully gotten three VMs to enable replication; but on my next VM I keep getting the same error message when I try to enable replication.

"Hyper-V failed to enable replication for virtual machine 'IPAM': The operation timed out (0x00002EE2)."

Nothing has changed since I enabled replication for the other VMs, and I am at a loss as to why this VM is having issues.

The only odd thing I have noticed is on the DR node, Hyper-V creates the VM and creates the cluster resource role for the VM but never adds the VM to the resource role.

I have gone through the "Understanding and Troubleshooting guide for Hyper-V Replica" but that has not helped identify the problem.

Any help would be appreciated.

Hello!

I am trying to minimize the amount of server hardware regarding adding more servers to our domain (2008 R2).

We have a quite new and strong (2x 6-core xeon with 24GB RAM) secondary DC server in our 2008 R2 domain. I am trying to come up with a better plan to utilize this machine's resources which was a bit of an overkill for just an AD, DNS and DFS services.

Do you think it would be a good idea to demote that server, erase it, install 2008 R2 in Hyper-V mode and then add the AD service with DNS and DFS in Virtual mode and more (separate) virtual servers for other various purposes - thinking of Remote Desktop Services specifically for now, it can't run on same physical server as AD which is a slight problem as we are not planning on getting any hardware anytime soon.

Can MS Exchange also run on Hyper-V? That would be a plus as well if it could.

Thanks for insights.

I am new to Hyper-V, never tried it before. Also forgot to mention, we use 2008 R2 Standard licenses, not enterprise/datacenter whatever.