Hyper-V Host:  Dell PowerEdge R620 Server with 8 NIC, 256GB RAM connected to iSCSI SAN running Windows 2008 R2 SP1

Guest Machine(s): Windows 2008R2 or 2012 servers (total of 8 servers)

Symptom:  Windows 2008 R2 server drops the network connection.  Cannot PING or access the server.  Tried rebooting guest server, but still not able to connect.  So changed the network connection via Hyper-V Management console to another virtual adapter, and the system comes back online immediately.  

Logical thinking: The NIC must be bad.  But the problem continued at random times (like once or twice a week - especially in the morning with heavy network traffic load).  So, I switched the network back to the original Virtual NIC, and the system runs fine.

So it seems that the Hyper-V randomly "kills" the NIC when it is utilizing heavy I/O load.  And only way to fix it at this time is to swap the virtual NIC (5 sec but need to do manually).  Tried add another NIC to provide additional bandwidth, but same problem exists.

Is there some sort of patch available to address this?  Or maybe registry update to IGNORE the heavy I/O on a Guest OS?

I looked into http://support.microsoft.com/kb/2263829/en-us  but this seems to be a different issue as the article states that the machines comes online when rebooted where as that is not the case on my part.

I have a two node Server 2012 R2 Hyper-v cluster built from SCVMM 2012 R2. I have created a virtual switch that is bound to a LBFO team (8 x 1GB Nics) on each host. Logical Networks are all defined with different VLAN IDs and subnets. I have created different vNics for the parent nodes for different cluster networks as follows:

Management: 10.226.208.128/26 (VLAN 100) - this is the only NIC with a default gateway.
Live-Migration: 172.16.2.128/26 (VLAN660)
Cluster-CSV: 172.16.3.128/26 (VLAN661)

Each of the host vNics that are connected to the virtual switch have VLANID's defined.

However I am seeing some strange behaviour with cluster network traffic being blocked by our perimiter hardware firewall as follows:

100: access-list ACL109 denied tcp DMZ/10.226.208.188(62786) -> LAN/172.16.3.133(3343) hit-cnt 1 first hit [0xba094209, 0x0]

(Here I would expect the TCP 3343 traffic to go from 10.226.208.188 directly to 10.226.208.187 or from 172.16.3.134 to 172.16.3.133).

HYPERVHOST1
vEthernet (Management: 10.226.208.187)
vEthernet (Live-Migration 172.16.2.133)
vEthernet (Cluster-CSV: 172.16.3.133)

HYPERVHOST2
vEthernet (Management: 10.226.208.188)
vEthernet (Live-Migration: 172.16.2.134)
vEthernet (Cluster-CSV: 172.16.3.134)

Any ideas what I am missing here?

Microsoft Partner

i have installed Fedora on Hyper-v but i cant connect to internet form it. I followed this article ?

http://blogs.msdn.com/b/virtual_pc_guy/archive/2007/12/31/installing-fedora-core-8-on-hyper-v.aspx

How can i resolve this problem ?

Dileepa S. Rajapaksa
---------------------------------
Trainee Developer
Microsoft, Sri Lanka
----------------
Twitter : @dsrajapaksa
Blog : http://www.dileepatech.net

Hey all...I have a problem I cannot seem to figure out. We are a training center and it is typical for me to build 1 image (lets just say SQL Server 2012. It is build on Server 2008 r2 and the virtuals are of course Hyper V and are prebuilt. I just have to run the import scripts and import them in. All works great. I clone that machine to my ghost server and deploy it out to lets say 15 other machines. This is the problem....the virtuals run just fine. However, if they try to get on the internet from the HOST machine, it takes FOREVER, if it makes it at all. Im assuming it has to do with the virtual switch using the same MAC address from the original machine it was built on, therefore causing a broadcast storm. But if I go into the Hyper V manager and change the MAC address to a static one and put unique numbers in it, nothing changes. I even tried to enable all protocols on the virtual switch, but still no go. Can you guys please tell me what Im doing wrong and how to correct it! Its a huge problem and as of now my only solution is to import the virtuals one by one on each machine, which takes 3 times as long as just ghosting the machine once.

Thanks for your help on this matter!

I have a few virtual machines running Centos 6.5.  (kernel 2.6, integration tools 3.5)

I've found that sometimes I cannot get the IP address for these machines.

The powershell command - 

PS> (Get-VMNetworkAdapter -VMName 'name').IpAddresses

just hangs for tens of minutes and eventually returns back to the prompt with no output.  This command works on other VMs in the system, even other Linux VMs running the same software.  

How do I troubleshoot this?  I'm not seeing pertinent errors in the WMI event tracing.

Hi

2 Win2k2012 R2 servers, VM replicating between each other was fine but once its stopped and from then onwards its not replicating, so removed replication and now if i try to use same replica server i am not able to use that same replica server.

Below are two images, first one says "could not get configuration details of the specified server" which means primary server is not getting any information from Replica server, but still i try to put it manually and lastly i got error which is a second image.

Pragnesh 

H,

I try to suspend a replication of a VM  in  A cluster using powershell but failed ,do you know how to solve the following powershell commands

VM=Get-ClusterGroup -Cluster HVCLS -Name "SCVMM VMNAME Resources"
Suspend-VMReplication VM

Ramy

What options do I have for creating NIC teams using a LACP configuration?

I have aDell R720 with 2 quad-NIC adapters and the Hyper-V Physical will run only ONE VM, the VM will be a 1 TB File Server and 100 users/clients using these VM file server

The Dell PE R720 Server and its 2 X quad-port adapters is connected to a single HP Switch 2620, all 8 NICs in the same Switch. All 2620 Switch ports are 100 Mb/s ports and all users are connected using 100 Mb/s ports although users having Broadcom 1 gb/s adapters, the cabling, swiching and Ip Phoes, limits users to 100 Mb/s conenctions.

I´m thinking about creating a Team with 2 adapters, for management purposes and another Team with 6 adapters for VM usage.

Team-LAN = 2 NICs

team-VM = 6 NICs

It will be a good approach, considering the goloa here is to provide for the file server users, some degree of  redundancy and the best performance the users can have.performance??

It will be a good idea to use NIC teaming INSIDE the VM, configuring the VM to Team its virtual adapters?

I can do live migration, from one node to another. No error. Problem / Question that I have is, is live migration really lie migration.

When I do live migration from cluster or SCVMM  it save and start  virtual machine. Which fro me is not live migration.

I have describe in more details : http://social.technet.microsoft.com/Forums/en-US/a52ac102-4ea3-491c-a8c5-4cf4dd14768d/synthetic-fibre-channel-hba-live-migration-savestopstart?forum=winserverhyperv

BlatniS

I'm having trouble getting Hyper-V to work on my Windows 8.1 PC (apologies if I'm posting this in the wrong category, I couldn't find Hyper-V anywhere else). I'm trying to run the Windows Phone 8.1 emulator, but I get the error message "'VM name' could not initialize".

I'm using an Intel 4770K CPU, and I have about 5 GB of RAM available when trying to start a VM.

Here's what I've tried:

1. Removing Hyper-V (Add or remove Windows features), restarting, Adding Hyper-V, restarting
2. Disabling Hardware Visualization in Z87-A BIOS, restarting, enabling, restarting
3. Removing the VMs
4. Creating a new VM
5. Updated BIOS
6. Reset BIOS to factory settings
7. Stopped & restarted Hyper-V service

I've had no luck so far. Hyper-V was working perfectly fine the last time I used it, which is about 2-3 months ago.

Some of the errors I could find in the Event Viewer (not in chronological order):

http://g2f.nl/0bg7psd

http://g2f.nl/0g250it

http://g2f.nl/0vsvxgv

http://g2f.nl/00obiml

http://g2f.nl/0vht6tm

There are no errors saying something about permissions or access denied.

I'd really appreciate it if you could help me fix this!

Hello All,

I have Hyper-v machine with three snapshot. All the snapshot size around 200GB. The total this Hyper-v machine size 800GB and physical HDD size 1TB. Now i need to delete the hyper-v snapshot and run the compact as because of Hyper-v HDD issue. But i cannot run the delete snapshot due to Physical HDD size issue. Is their any way to delete snapshot on existing HDD size.

Please suggest

Hi, I have HP server with 12GB physical memory with WS2012 R2 with hyper-v running.

I am deploying about 4-5 CSR1000v routers which by spec requires creating VM with 4GB fixed minimum memory each. However I can not start more than 2 of them at a time because more than that, it complains there is not enough memory. I also tried to set them to dynamic memory and also tried reducing one of them to 1GB to see if it starts but no avail. I also increased the virtual memory to insane amount of 64GB-128GB using one of the available local hard disk but no help either. 

Previously I used vmware esxi on same server and were able to run any number of VMs with no problem. I am pretty sure cumulative memory of the running VMs were more than physically available and i think somehow ESXi manages it.

However I think this is not happening on hyper-v by default, so i am wondering if there is any trick in doing it??

Thanks!

Hi All,

  We have Hyper-v cluster with 6 nodes. Currently I’m facing some issues with hyper-V cluster CSV backup with EMC networker. Current configuration as below.

All the servers are hosted in different data center . we are using vendor backup solution and it’s in different Network segment . we have DEDICATED NETWORK CARD FOR EACH HOST and added the static route for all the hyper-V servers. And hyper-v host can ping to Media server. But when the media server try to backup it’s not starting.

OS =  Windows 2008 R2 Datacenter SP 1

Network configuration :

Separate network card for all the Interfaces.

Management Network : 10.1.100.XXX range all the six servers

Cluster IP  : 10.1.100.XXX

Live migration network : 10.1.3.XXX range all the six servers

HB  network : 10.1.3.XXX range all the six servers

DMZ Network :

VM Network  :

Backup network : 10.1.113.XXX range all the six servers

EMC networker application cannot communicate to hyper-cluster cluster. any idea why? Is it possible to add new backup vlan IP address to Cluster Name?

Thanks,

Aucsna

I have Three node HyperV 2012 R2 Cluster. I have Guest that is Windows sever 2012 R2.  I have crated two Fibre Channel SAN for two  Qlogic  adapters. I have install multipath and required drives  to host and guest. Guest has  two virtual SAN  presented. I  see luns-a and so on… I can move   virtual machine  between hyper-v host without problem.   The only  thing that is bordering me, is that Live migration shut go without  stopping machine.  A lose about six ping.

These is what I can see  on target host, where I move machine.

LOG  NAME : Microsoft-Windows-Hyper-V-SynthFC-Admin

Log Name:      Microsoft-Windows-Hyper-V-SynthFC-Admin

Source:        Microsoft-Windows-Hyper-V-SynthFcVdev

Date:          30.7.2014 15:04:10

Event ID:      32212

Task Category: None

Level:         Information

Keywords:     

User:          NT VIRTUAL MACHINE\357ACBE7-BB03-4B9B-8101-1B320EF46395

Computer:      ********************************

Description:

'*************': LUN '\\?\SCSI#VMLUN&Ven_IBM&Prod_1815______FAStT#5&3751190f&0&040000#{6f416619-9f29-42a5-b20b-37e219ca02b0}' has been restored successfully for the Synthetic Fibre Channel HBA Fibre Channel Adapter (C9FA769F-3339-48DD-91A4-591C326191E1). (Virtual machine ID 357ACBE7-BB03-4B9B-8101-1B320EF46395)

Log Name:      Microsoft-Windows-Hyper-V-SynthFC-Admin

Source:        Microsoft-Windows-Hyper-V-SynthFcVdev

Date:          30.7.2014 15:04:10

Event ID:      32200

Task Category: None

Level:         Information

Keywords:     

User:          NT VIRTUAL MACHINE\357ACBE7-BB03-4B9B-8101-1B320EF46395

Computer:      ********************************

Description:

'******************': Synthetic Fibre Channel HBA Fibre Channel Adapter (C9FA769F-3339-48DD-91A4-591C326191E1) started successfully. (Virtual machine ID 357ACBE7-BB03-4B9B-8101-1B320EF46395)

Log Name:      Microsoft-Windows-Hyper-V-SynthFC-Admin

Source:        Microsoft-Windows-Hyper-V-SynthFcVdev

Date:          30.7.2014 15:04:43

Event ID:      32200

Task Category: None

Level:         Information

Keywords:     

User:          NT VIRTUAL MACHINE\357ACBE7-BB03-4B9B-8101-1B320EF46395

Computer:      *********************************

Description:

'******************': Synthetic Fibre Channel HBA Fibre Channel Adapter (C200FEDF-78AC-4C7A-90F6-13B4C61C5588) started successfully. (Virtual machine ID 357ACBE7-BB03-4B9B-8101-1B320EF46395)

LOG NAME  : Microsoft-Windows-FailoverClustering/Diagnostic

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *********************************

Description:

[RES] Virtual Machine Configuration <Virtual Machine Configuration ****************>: Current state 'MigrationDstWaitForOnline', event 'MigrationDstWaitForMove'

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      **********************************

Description:

[RES] Virtual Machine Configuration <Virtual Machine Configuration ****************>: State change 'MigrationDstWaitForOnline' -> 'MigrationDstWaitForMove'

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      **********************************

Description:

[GUM] Node 2: Executing locally gumId: 449, updates: 1, first action: /rcm/gum/GroupMoveOperation

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      **********************************

Description:

[RCM] move of group SRVSQLVIRT1 from **************(3) to **************(2) of type MoveType::Manual is about to succeed, failoverCount=0, lastFailoverTime=1601/01/01-00:00:00.000 targeted=true

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      ********************************

Description:

[RCM] Group ******************: done going through resources, returning true

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      ********************************

Description:

[RCM] Handing group ***************** over to the priority manager for bringing

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *********************************

Description:

[RCM] Res Virtual Machine Configuration *****************: Offline -> OnlineCallIssued( StateUnknown )

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *********************************

Description:

[RCM] TransitionToState(Virtual Machine Configuration **************) Offline-->OnlineCallIssued.

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *********************************

Description:

[RCM] rcm::RcmGroup::UpdateStateIfChanged: (**************, BringingToPersistentState --> Pending)

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *********************************

Description:

[RCM] rcm::RcmResource::Online: Virtual Machine ***************'s provider 'Virtual Machine Configuration ***************' isalready coming online (state is OnlineCallIssued).

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      ********************************

Description:

[RCM] Res Virtual Machine ***************: Offline -> WaitingToComeOnline( StateUnknown )

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:10

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      ********************************

Description:

[RCM] TransitionToState(Virtual Machine *************) Offline-->WaitingToComeOnline.

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:43

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      **********************************

Description:

[RHS] Resource Virtual Machine ************* called SetResourceLockedMode. LockedModeEnabled0, LockedModeReason0.

Log Name:      Microsoft-Windows-FailoverClustering/Diagnostic

Source:        Microsoft-Windows-FailoverClustering

Date:          30.7.2014 15:04:45

Event ID:      2049

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      **********************************

Description:

[RCM] ignored non-local state Online for group ****************

LOG Name : Microsoft-Windows-Hyper-V-Integration-Admin

Log Name:      Microsoft-Windows-Hyper-V-Integration-Admin

Source:        Microsoft-Windows-Hyper-V-Integration-KvpExchange

Date:          30.7.2014 15:04:11

Event ID:      4096

Task Category: None

Level:         Error

Keywords:     

User:          NT VIRTUAL MACHINE\357ACBE7-BB03-4B9B-8101-1B320EF46395

Computer:      ********************************

Description:

'****************': The Data Exchange integration service is either not enabled, not running or not initialized. (Virtual machine ID 357ACBE7-BB03-4B9B-8101-1B320EF46395)

Log Name:      Microsoft-Windows-Hyper-V-Integration-Admin

Source:        Microsoft-Windows-Hyper-V-Integration

Date:          30.7.2014 15:04:43

Event ID:      4020

Task Category: None

Level:         Information

Keywords:     

User:          NT VIRTUAL MACHINE\357ACBE7-BB03-4B9B-8101-1B320EF46395

Computer:      ********************************

Description:

Hyper-V Heartbeat connected to virtual machine '****************' is using the most recent version (Virtual machine ID 357ACBE7-BB03-4B9B-8101-1B320EF46395).

LOG NAME : Microsoft-Windows-Hyper-V-VMMS-Admin

Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin

Source:        Microsoft-Windows-Hyper-V-VMMS

Date:          30.7.2014 15:03:36

Event ID:      32186

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *******************************

Description:

Synthetic FC PNP Lun add event for Instance Name \\?\SCSI#VMLUN&Ven_IBM&Prod_1815______FAStT#5&2e217554&0&040000#{6f416619-9f29-42a5-b20b-37e219ca02b0} for Virtual Machine Id (357ACBE7-BB03-4B9B-8101-1B320EF46395) and VDEV Instance Id (C200FEDF-78AC-4C7A-90F6-13B4C61C5588).

Log Name:      Microsoft-Windows-Hyper-V-VMMS-Admin

Source:        Microsoft-Windows-Hyper-V-VMMS

Date:          30.7.2014 15:04:45

Event ID:      20418

Task Category: None

Level:         Information

Keywords:     

User:          SYSTEM

Computer:      *******************************

Description:

The Virtual Machine Management service successfully completed the live migration of virtual machine  '***************' (VMID 357ACBE7-BB03-4B9B-8101-1B320EF46395), received from IP address: '192.168.100.25'.

BlatniS

Hi,

I have a challenge to prepare virtual infrastructure on Windows 2012R2, i need to deploy 4 virtual instances free on server which will be connected to thin clients. Please advice on the same, also let me know what all i have to buy and what is free with R2

with thanks

Arun

Hi,

We have stream/media player which use File share on WS2012 R2. It uses UPnP protocol to connect on File Share and it works fine. But, after enabling Hyper-V role on that server machine, stream/media player can't connect anymore on network share, cannot see any network computer, I would say master browser service is corrupted.

Do you have advice, how to use UPnP on server with enabled Hyper-V role and virtual network adapter?

Thank you in advance

Hi,

I wanted to know if it is possible to hard partition CPU in hyper v host to specifically assign a vCPU to physical core? I mean one-to-one mapping of vCPU to Physical core. This feature is available in Oracle VM. Will appreciate the reply with resources/web links guiding how to achieve this if possible.

Thanks

Rafay

Host hangs after install Hyper-V on Windows Server 2012 R2 - Dell PowerEdge R720 and Xeon E5-2609 

I have a brand-new Dell Servere, BIOS and other firmwares 100% updated and after the install of Hyper-V, the OS hangs in the Win logo and if i disable the Intel-VT, the OS loads again, with no problem. 

There is a bug in the Xeon, maybe? BIOS version 2.2.3.

The .ISO used was MD5-Verified and it´s OK, it´s the new .ISO, with the April Update in it.

Hi ,

• Is it licensed and activated to install Guest windows server 2012 R2  on a cluster windows server 2012 Datacenter edition
• As we know Datacenter allows unlimited activations on the same server
• I'm worried to get license issue for guest 2012 R2 on 2012 Datacenter

thanks

Ramy