Hi,

We have a Guest Cluster Configuration on top of an Hyper-V Cluster. We are using Windows 2012 and Fiber Channel shared storage.

The problem is regarding Live Migration. Some times when we move a virtual machine from node A to node B everything goes well but when we try to move back to node A Live Migration fails. What we can see is that when we move the VM from node A to B and Live Migration completes successfully the virtual ports remain active on node A, so when we try to move back from B to A Live Migration fails because the virtual ports are already there.

This doesn't happen every time.

We have checked the zoning between Host Cluster Hyper-V and the SAN, the mapping between physical HBA's and the vSAN's on the Hyper-V and everything is ok.

Our doubt is, what is the best practice for zoning the vHBA on the VM's and our Fabric? We setup our zoning using an alias for the vHBA 1 and the two WWN (A and B) on the same object and an alias for the vHBA 2 and the correspondent WWN (A and B). Is it better to create an alias for vHBA 1 -> A (with WWN A) and other alias for vHBA 1 -> B (with WWN B)? 

The guest cluster VM's have 98GB of RAM each. Could it be a time out issue when Live Migration happen's and the virtual ports remain active on the source node? When everything goes well, the VM moves from node A with vHBA WWN A to node B and stays there with vHBA WWN B. On the source node the virtual ports should be removed automatically when the Live Migration completes. And that is the issue... sometimes the virtual ports (WWN A) stay active on the source node and when we try to move back the VM Live Migration fails.

I hope You may understand the issue.

Regards,

Carlos Monteiro.

Hi all.

Yesterday I try to migrate my VM between 2 nodes and receive a error:

Live migration of 'Virtual Machine 'VMName' failed.

Virtual machine migration operation for 'VMName' failed at migration destination 'SecondServer'. (Virtual machine ID 22CF27B6-60F7-43C2-8DA2-7E16E9990642)

'VMName' Synthetic FibreChannel Port: Failed to start reserving resources with Error 'Cannot create a file when that file already exists.' (0x800700B7). (Virtual machine ID 22CF27B6-60F7-43C2-8DA2-7E16E9990642)

'VMName': NPIV virtual port operation on virtual port (C003FF2316FD0025) failed with an error: The world wide port name already exists on the fabric. (Virtual machine ID 22CF27B6-60F7-43C2-8DA2-7E16E9990642)

'50C885CE-AA51-4703-9F47-CC6710328795': NPIV virtual port operation for virtual port (C003FF2316FD0026) on physical port (50014380072C2B98) failed with an error: (0x800700B7) and NPIV error: (0x00000000). (Virtual machine ID 22CF27B6-60F7-43C2-8DA2-7E16E9990642)

VM work  in 2 nodes cluster on Windows Server 2012 Standard. Each Cluster node has 2 port FC HBA. Each port connect to different physic FC Fabric.  Each cluster node has 2 Virtual Fiber Channel SAN.  

VM has next FC configuration:

SanName               : Fabric 1
WorldWideNodeNameSetA : C003FF2316FD0024
WorldWidePortNameSetA : C003FF2316FD0025
WorldWideNodeNameSetB : C003FF2316FD0024
WorldWidePortNameSetB : C003FF2316FD0026
ComputerName          : FirstServer
Name                  : Fibre Channel Adapter
Id                    : Microsoft:22CF27B6-60F7-43C2-8DA2-7E16E9990642\50C885CE-AA51-4703-9F47-CC6710328795
IsDeleted             : False
VMId                  : 22cf27b6-60f7-43c2-8da2-7e16e9990642
VMName                : VMName
VMSnapshotId          : 00000000-0000-0000-0000-000000000000
VMSnapshotName        :

SanName               : Fabric 2
WorldWideNodeNameSetA : C003FF2316FD0024
WorldWidePortNameSetA : C003FF2316FD0027
WorldWideNodeNameSetB : C003FF2316FD0024
WorldWidePortNameSetB : C003FF2316FD0028
ComputerName          : Firstserver
Name                  : Fibre Channel Adapter
Id                    : Microsoft:22CF27B6-60F7-43C2-8DA2-7E16E9990642\86F19D9D-464E-44C6-A117-4B7373A2AC69
IsDeleted             : False
VMId                  : 22cf27b6-60f7-43c2-8da2-7e16e9990642
VMName                : VMName
VMSnapshotId          : 00000000-0000-0000-0000-000000000000
VMSnapshotName        :

 I see next WWPN from this VM machine: C003FF2316FD0025; C003FF2316FD0027  in SAN at now

Problems occurs only when I migrate VM from FirstServer to SecondServer. Migration VM (with FC VHBA) from SecondServer to FirstServer  works fine.

Help me to understand this problem and step to resolve it.

Best Regards

We have a 2 node Hyper-V 2012 cluster on 2012 Standard Server Core.

Cluster Aware Updating was used to update the nodes to current.

4 NIC ports total on each node.

2 connected to management network using standard load balancing.

2 connected to production exclusively using HyperVPort load balancing.

A newly stood up Windows 7 VM does not receive any network connectivity using the Microsoft Hyper-V Network Adapter. Integration Services updated and a reboot and still no connectivity.

Shut down the VM and install the Legacy Adapter and boot the VM up and connectivity works. 

How do I figure out where the problem is please?

Philip Elder

MPECS Inc.

Philip Elder SBS MVP Blog: http://blog.mpecsinc.ca

Here's the Error

'VMName' failed to start worker process: no such interface supported (0x80004002)

I have no idea why this has occurred.. I'm away from home and this is on my home server... All VMs won't start... also any new VMs I create won't start... There's been no changes... I think there was a power outage though... I considered a windows update... but none have been installed at all....

I won't install any updates just in case as that may only compound the problems..

The only things in the event logs are the messages with the above error.. it doesn't explain further and there doesn't appear to be any extra messages which give more detail.

The OS is Server 2012 R2 just running Hyper-V

Any help would be greatly appreciated.

I have one server running Server 2012R2 (standard) and Hyper-V. 2 NIC's, one dedicated for my host system, the other serving my VM's. "Allow management...." is not enabled in Hyper-V switch manager. The host machine is not running other services, except for Hyper-V. DHCP, DNS, DC is running on one of my VM's. Both IPv4 and IPv6 is enabled (i have native IPv6 via my network provider). All servers (host and VM's) has been assigned with static IPv4 and IPv6 addresses. The host system is a member server of my Domain (2012R2)

Problem is that my host is not able to communicate externally. The NIC has this yellow sign, telling that I have no internet access. When trying to run the troubleshooter, I am told that DHCP is not enabled. Have tried to shut down all the VM's and when running the troubleshooter then, I am told that it cannot locate the default gateway.

Communication between the host and the VM's works fine but as soon as I try to access resources outside the box, it fails.

Have tried to delete and recreate the virtual switch but the problem remains

I am stuck at the moment, please someone help!

# Set Scope!
$VM_Service = get-wmiobject -namespace root\virtualization Msvm_VirtualSystemManagementService
$ListofVMs = get-wmiobject -namespace root\virtualization Msvm_ComputerSystem -filter  "ElementName <> Name "  | `
    where { $_.ElementName -like $vmName }
foreach ($VirtualMachine in $ListofVMs) {
        if ($VirtualMachine -ne $Null)
        {
        $VMGlobalSetting = get-wmiobject -namespace root\virtualization Msvm_VirtualSystemGlobalSettingData | where `
           { $_.ElementName -like "*$($VirtualMachine.ElementName)*" }

         $VMGlobalSetting.ScopeOfResidence = $scope

         $VM_Service.ModifyVirtualSystem($VirtualMachine.__PATH, $VMGlobalSetting.psbase.Gettext(1))

          }
Write-Host "Virtual Machine" $vmName "Added to Scope" $scope
}
# End of Set Scope

This is driving me crazy and I've spent a little too long of a vacation trying to figure thus out. But since this vacation was a chance for me to make some progress on a non-work project - well, it's really bugging me (and is a blocker I've had for two days so far)! Any help would be appreciated.

I am running HyperV on a Windows 8.1 host. I need to create a guest that has internet access. Just to remove any questions as to whether my hardware and OS installation support this, I had this working perfectly last week on the exact same machine. I simply added an external network through the HyperV Virtual Switch Manager, added that under Settings -> Network for the VM in question and everything just worked immediately. The guest obtained an IP address just fine and all was rosy.

So, then I come on vacation and set up a VM. I'm on a different physical network but everything seems the same from the host perspective - I just connected to the wireless network and the host itself works just fine.

However, no matter what I try I can't get the guest VM to obtain an IP address. I've done the same configuration with the external virtual switch, bound (in Settings -> Network) to the VM and so on. The VM sees the virtual NIC card just fine - but always fails to obtain an IP address (can't reach the DHCP server, I believe).

The only thing that has changed - as far as I know - is the network environment. The new environment immediately and easily supported me getting the host hooked up (it got an IP address itself) and provides access to the Internet.

By the way, I did see some recommendations to create an INTERNAL virtual switch and bridge with the wifi connection. I don't know why that would be preferred over the more direct use of an external virtual switch - but, regardless, that approach failed too (same issue - no response from DHCP server).

Any ideas on what might be going on here?

Thanks in advance.

Mark Williams

Dear Community,

as you probably know the new R2-Version was advertised with the ability of PxE-booting with the synthetic instead of the legacy-nic which works with poor 100 mbit/s.

Here´s the problem:

When I create a new virtual machine with Gen2 without the option "Secure Boot" and PxE-boot it, I get the following error:

Boot failed. EFI Network.
Boot failed. EFI SCSI Device.
No Operating System was Loaded. Press a key to retry the boot sequence

When I create another new virtual machine with Gen2 but with the option "Secure Boot" and PxE-boot it, I get this error:

Station IP address is x.x.x.x
Server IP address is x.x.x.x
NBP filename is pxelinux.0
NBP filesize is 15888 Bytes
Downloading NBP file...
Successfully downloaded NBP file.
Boot Failed. EFI Network. Failed Secure Boot Verification.
Boot Failed. EFI SCSI Device
No Operating System was Loaded. Press a key to retry the boot sequence

When taking a look at the log of the TFTP-Server (TFTPD32) I get the same information regardless which way I do it. The only interesting thing it says is:

"Peer returns ERROR <User aborted the transfer> ->aborting transfer"

I have also tried to use another tool called Serva as TFTP/PXE-Server -> The error still occurs.

Before anybody wants me to try to do it as Gen1 -> I know that this works, but I want to get it running under Gen2 since the synthetic one works (should work) much faster than the legacy-one.

Really looking forward to get some useful information here.

Thanks in advance !

Hi, have created some VMs fine on 2008R2 and 2012 Hyper-V but now onto 2012 R2, am using the Gen 2 VM and hitting install error when booting them from the 2012R2 RTM .ISO (downloaded straight from Technet) loaded into virtual DVD:

I see from http://social.technet.microsoft.com/Forums/windowsserver/en-US/53f901e4-5bd0-4e13-80a2-bca2f57b15e9/hyperv-unable-to-boot-from-cd-or-iso-in-vm-machine?forum=winserverhyperv that Hyper-V seems unable to boot from a synthetic SCSI until guest OS actually installed - so Catch-22! But I can't add an IDE Controller because it's not on the list:

I tried the Integration Services and it seems fine on the Settings (including ticking the only one unticked - Guest Services) although if you need to run them from the DVD, it has the same problem - you can see them loaded (or the Win2012R2 ISO) in the DVD Media but you can't make them run through booting on SCSI!

The physical drives are SATA not SCSI but presumably no matter as Hyper-V runs SCSI virtually, but why does Hyper-V default to SCSI and how do I get the DVD to run off an IDE instead if that is the way to install a base OS from .ISO? Or is there an easier way than all this?

TIA, Phil.

Lasandro Lopez

What a mouthful.

As short as possible: 

WHAT I'M ATTEMPTING:

I'm trying to build a new NLB cluster for a 2008 R2 SP1 Remote Desktop Services farm. And I'm trying to do it the right way, with multicast igmp, not unicast. 

The two guest VMs with NLB install converge fine. VIP gets this:

IP: 192.168.100.157

MAC: 01-00-5e-7f-64-9d

NLB NIC is on the same VLAN & "Converged switch" in VMM as our mgmt/server traffic (That is to say it's on production VLAN, not on a separate vlan) 

PROBLEM:

Can't ping 100.157. From VM guest itself, from host, or from Cisco 6509 switch. 

Cisco show mac address lookup does not see that MAC anywhere

show ip igmp groups shows not igmp traffic at all. Clearing counters show sno multicast increment.

FURTHERMORE:

Host is setup thusly:

- Dell R810

- 8x1GbE Broadcom 5709c in a Server 2012 LACP/HASH team built via VMM powershell cmdlets

- On the physical switch side, those 8 nics are in a Cisco port-channel, trunked, all VLANs allowed

-  Host has no "physical" nics per se, as in a 2008 R2 hyper-v host. Instead Host has these:

Set-VMNetworkAdapter -ManagementOS -Name "Live Migrate" -MinimumBandwidthWeight 35
Set-VMNetworkAdapter -ManagementOS -Name "MGMT" -MinimumBandwidthWeight 25
Set-VMNetworkAdapter -ManagementOS -Name "CSV" -MinimumBandwidthWeight 40
Set-VMNetworkAdapter -ManagementOS -Name "iSCSI #1" -MinimumBandwidthWeight 0
Set-VMNetworkAdapter -ManagementOS -Name "iSCSI #2" -MinimumBandwidthWeight 0
Set-VMNetworkAdapter -ManagementOS -Name "Aux" -MinimumBandwidthWeight 0

Get-VMSwitch outputs this on the converged v-switch: 

ComputerName                        : My-host
Name                                : My awesome switch
Id                                  : e2377ce3-12b4-4243-9f51-e14a21f91844
Notes                               : 
SwitchType                          : External
AllowManagementOS                   : True
NetAdapterInterfaceDescription      : Microsoft Network Adapter Multiplexor 
                                      Driver
AvailableVMQueues                   : 0
NumberVmqAllocated                  : 0
IovEnabled                          : False
IovVirtualFunctionCount             : 0
IovVirtualFunctionsInUse            : 0
IovQueuePairCount                   : 0
IovQueuePairsInUse                  : 0
AvailableIPSecSA                    : 0
NumberIPSecSAAllocated              : 0
BandwidthPercentage                 : 0
BandwidthReservationMode            : Weight
DefaultFlowMinimumBandwidthAbsolute : 0
DefaultFlowMinimumBandwidthWeight   : 1
Extensions                          : {Microsoft NDIS Capture, Microsoft 
                                      Windows Filtering Platform, Microsoft 
                                      VMM DHCPv4 Server Switch Extension}
IovSupport                          : False
IovSupportReasons                   : {This network adapter does not support 
                                      SR-IOV.}
IsDeleted                           : False

Question:

Aside from a few of my favorite MS MVPs (shout out to WorkingHardInIt for having this same question), I can't find much documentation on employing 2008 R2 NLB on guest VM within a fabric-oriented, VMM-built 2012 Hyper-Visor converged switch (no network virtualization...yet).

Yes I know all about VMM NLB but 1) I'm trying to wedge NLB in after building these VMs without a service template (NLB is the audible, essentially) and 2) MS NLB is configured in providers & I've created requisite VIP templates. 

Even so, I ought to be able to create an NLB cluster without VMM's assistance in this scenario correct? Suboptimal, I know but possible, yes? Essentially I've put to synthetic NICs on each VM, set IPs manually, and assigned them to the same vlan. I can ping each synthetic NIC, but not the cluster IP. 

And yes: these particular vNICs have Mac Address Spoofing enabled. 

Cisco:

I have a TAC case open with Cisco, but they can't quite figure it out either. IGMP Snooping enabled across the switch. And they insist that the old static arp entry to resolve this problem is no longer necessary, that Microsoft now complies with relevant RFCs

Possible SOlution:

Only thing I can think of is flipping MulticastForwarding param below from disabled to enabled. Anybody ever tried it on a converged virtual switch on the Hyper visor? Is my virtual converged switch protecting me from multicast igmp packets? 

PS C:\utilities> Get-NetIPv4Protocol


DefaultHopLimit             : 128
NeighborCacheLimit(Entries) : 1024
RouteCacheLimit(Entries)    : 128
ReassemblyLimit(Bytes)      : 1560173184
IcmpRedirects               : Enabled
SourceRoutingBehavior       : DontForward
DhcpMediaSense              : Enabled
MediaSenseEventLog          : Disabled
IGMPLevel                   : All
IGMPVersion                 : Version3
MulticastForwarding         : Disabled
GroupForwardedFragments     : Disabled
RandomizeIdentifiers        : Enabled
AddressMaskReply            : Disabled

Robert

Our setup is the following:

Three Dell Poweredge R720s running Windows Server 2012 R2 (which was upgraded in place from 2012). These servers run Hyper-V and we use Virtual Switch Manager to manage the networking in the VMs. Due to the fact that the Ethernet ports do not map to the correctly labelled Ethernet adapters in the operating system, we have notes in the Hyper-V switch manager to show which virtual adapter is mapped to which physical port.

I'm not sure if it was after the upgrade to 2012 R2 or something else, but the notes from the Virtual Switch Manager have just disappeared. Everything else has stayed the same, but there's no notes any more. Has anyone else encountered this? Is there any way we can prevent this happening? We believe it is also happening when we do live migrations, but we need to do a few more tests to see what happen when, so I can't confirm.

I have a problem whereby the SAN which was storing all my virtual machines developed a problem. I had to backup everything on the volume, delete it, recreate it and move everything back. During this, I think my VHDs became corrupted or developed problems. I have been trying to add them to new VMs in order to bring everything back online but am not having a lot of luck in doing so.

Hyper-V reports that one VHD is corrupt and doesn't seem to recognise the others. When I bring the server back online (this is my file server and has 8 disks) the drives show as offline in disk manager with blank grey spaces. When I try and bring them online they say "invalid". I can't bring the disks online or initialise them, leading me to believe they may be corrupt too.

Is there a way to recover from this? My backups are obviously not good.

Hello,

I’m looking for some recommendations on how to proceed with the setup of a Hyper-V Server 2012 R2 lab environment. I have two systems that I’d like to setup in a cluster.  These two systems have enough drives for two RAID volumes, one for OS and one for the VHDs. My initial investigation results are hazy on if I can use these same systems for the clustered storage, and if possible the limitations I will encounter. I do not have a SAN or NAS to use as storage.  Can I use these same systems as both the Hyper-V clustered hosts and as the clustered storage? If so, what is the best setup?  Will I experience any limitations versus using a SAN or NAS as storage?

Thank you very much for input.

Hey folks

I understand that this Cmdlet (set-vmmigrationnetwork) is not for the cluster . However In Hyper V cluster , By default It is selecting all the networks to use for live migration . Is there anyway we could script it to select specific network rather. ? . Also is there any chance we could name the cluster networks. Out of the box it is cluster network 1 , Cluster network 2 etc ...

Can we script it to name as ISCSI , Live migration, Cluster heartbeat etc . Just to make is easy to visualize.

Thanks

mumtaz

Hey All,

Doing support work for a client and they are unable to take snapshots from certain vm's. I think this is down the VM not having the virtual machines security group within its ACL instead is seems to just have two GUIDs. to me if looks like the vm's have been moved and imported or something like that but was obviously not done correctly.

When taking a snapshot they get a general access denied error

Does anyone know a quick way to add the virtual machines security group back into the ACL, I did find some powershell commands however this errored stating I could not change the owner of the group.

I'll keep looking but if someone knows a quick fix for this I would appreciate it. One other thing I had thought of was turning the vm off, The creating a new Virtual machine and attaching the VHD as the new VM? Would this work?

thanks in advanced

We installed our first Hyper-V server last Monday, and everything went pretty well. The first virtual machine was the main company server SERVER1, and this was running AD, DHCP, DNS. But I did have an issue during the setup for the client workstations. I was not able to connect some of them to the domain. When I tried to ping the virtual machines, only one of the servers was being resolved (to it's FE80 IPv6 address) and the others would not resolve at all. I disabled IPv6 on these clients and immediately they were able to ping all of the virtual machines. I thought IPv6 was meant to work alongside IPv4 when they were both installed by default, not interfere with IPv4?

So my question is: IPv6 will not be mandatory in our country for a long time yet I would think, so am I better off just disabling IPv6 on all clients and servers to avoid such issues in the future.

Dear All,

i have one confusion like which Virtual Machine to use ??
Hyper V or Virtual Box or VM ware.

i need USB's, i need few third party software to be run on my Virtual Os in this case which will be best for me to use ???

more over Network Connectivity is must.

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.